Conductive device with monitoring function
By designing a conductive device with monitoring function, real-time monitoring using temperature sensors and current monitoring coils, the temperature monitoring problem of conductive discharge under high current and high power transmission is solved, and accurate temperature monitoring and current management of conductive discharges is achieved, ensuring driving safety.
Patent Information
- Application Number
- CN202421740911.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the case of high current and high power transmission, the heat generation of the conductive discharge increases, resulting in temperature monitoring becoming particularly important, but the prior art is difficult to effectively monitor and manage the temperature of the conductive discharge.
Design a conductive device with monitoring function, including a conductive row, a monitoring assembly and a housing. The monitoring assembly includes a temperature sensor and a current monitoring coil. Heat is transmitted to the temperature sensor through a thermal conductive member and thermally conductive silicone, and connected to the plug connector through a pin to achieve real-time monitoring.
It significantly improves the accuracy of the temperature monitoring of the conductive discharge, ensures all-round monitoring of the current and temperature of the conductive discharge, and ensures driving safety. At the same time, it is simple in structure, low in cost, and easy to be automated assembled.
Smart Images
Figure CN222940240U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical connection, and more specifically, to a conductive device with a monitoring function. Background Art
[0002] With the increasing richness of the vehicle configuration, the electricity consumption of the vehicle increases year by year. Therefore, the requirement for the load-bearing capacity of the vehicle current carrier is also getting higher and higher. Due to the shape of the busbar being suitable for the vehicle space layout requirements, the utilization rate of the busbar is getting higher and higher. However, when it comes to high-current and high-power transmission, due to the large current flow, the heat generation of the busbar also increases accordingly.
[0003] To ensure the normal operation of the transmitted current, it is particularly important to monitor the temperature of the busbar. Therefore, a conductive device with a monitoring function is needed to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a conductive device with a monitoring function, including a busbar, a monitoring assembly and a housing. The monitoring assembly includes a monitoring sensor and a pin electrically connected to the monitoring sensor. The bottom surface of the monitoring assembly is in close contact with part of the surface of the busbar. At least part of the outer peripheral surface of the monitoring assembly is injection-molded with the housing, and a connection port for plugging and connecting with a mating connector is formed at the free end of the pin.
[0005] Optionally, the monitoring sensor includes a temperature sensing assembly, and the pin includes a first pin electrically connected to the temperature sensing assembly. The free end of the first pin is located within the connection port.
[0006] Optionally, the temperature sensing assembly includes a temperature sensor and a heat conducting member. The heat conducting member has a cavity, the temperature sensor is arranged in the cavity, and the heat conducting member is in close contact with the surface of the busbar.
[0007] Optionally, heat conducting silicone is injected into the cavity, and the heat conducting silicone covers at least the outer peripheral surface of the temperature sensor.
[0008] Optionally, the heat conducting member is made of a metal heat conducting material, and at least part of the bottom of the heat conducting member is welded to the busbar.
[0009] Optionally, the monitoring sensor further includes a current monitoring coil, and the pin includes a second pin electrically connected to the current monitoring coil. The free end of the second pin is located within the connection port.
[0010] Optionally, at least part of the current monitoring coil is injection-molded inside the housing.
[0011] Optionally, at least part of the outer peripheral surface of the busbar is injection-molded with an insulating layer.
[0012] Optionally, a heat shrink tube is wrapped around the connection between the housing and the insulating layer.
[0013] Optionally, thermal conductive silicone is injected into the gap between the housing and the conductive bar, and the gap between the heat conductive member and the conductive bar.
[0014] The utility model has the following technical effects:
[0015] The bottom surface of the monitoring assembly is closely attached to the conductive bar, which can significantly improve the accuracy of the detection assembly for monitoring the temperature of the conductive bar; in addition, the monitoring sensor is arranged inside the housing and is electrically connected to the mating connector through a pin, which is convenient for installation and improves the loading and unloading efficiency.
[0016] The housing is integrally injection-molded, which avoids the risk of current leakage, has a simple structure, low cost, a simple process route, and is easy to realize automatic assembly.
[0017] In addition, the heat generated by the conductive bar can be quickly conducted to the thermal conductive silicone through the heat conductive member made of metal, and the temperature sensor and the current monitoring coil comprehensively monitor the current and temperature of the conductive bar, ensuring driving safety.
[0018] Other features and advantages of the present utility model will become clear from the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.
[0020] Figure 1 Partial sectional structure schematic diagram of the conductive device in the present novelty;
[0021] Figure 2 In the present novelty Figure 1 Top view;
[0022] Figure 3 For Figure 1 Sectional view along A-A in;
[0023] Figure 4 In the present novelty Figure 1 Left view.
[0024] The labels in the figures are as follows:
[0025] 100, conductive bar; 200, monitoring sensor; 300, housing; 400, pin; 500, thermal conductive silicone; 600, insulating layer; 700, heat shrink tube;
[0026] 210. Temperature sensing assembly; 211. Temperature sensor; 212. Heat conducting member; 220. Current monitoring coil;
[0027] 310. Connection port; 410. First pin; 420. Second pin. Detailed implementation mode
[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0029] The following description of at least one exemplary embodiment is actually merely illustrative and in no way restricts the present invention or its application or use.
[0030] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said techniques, methods and devices should be regarded as part of the specification.
[0031] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.
[0032] As Figures 1-4 The conductive device with a monitoring function shown in the figure includes a conductive busbar 100, a monitoring assembly and a housing 300. The monitoring assembly includes a monitoring sensor 200 and a pin 400 electrically connected to the monitoring sensor 200. The bottom surface of the monitoring assembly is closely attached to the surface of part of the conductive busbar 100. At least part of the outer peripheral surface of the monitoring assembly is injection-molded with the housing 300, and a connection port 310 for plugging and connecting with a mating connector is formed at the free end of the pin 400.
[0033] The bottom surface of the monitoring assembly is closely attached to the conductive busbar 100, which can improve the accuracy of the detection assembly for temperature monitoring of the conductive busbar 100; in addition, the monitoring sensor 200 is arranged inside the housing 300 and is electrically connected to the mating connector through the pin 400, which is convenient for installation and improves the loading and unloading efficiency.
[0034] The housing 300 is integrally injection-molded, avoiding the risk of current leakage, having a simple structure, low cost, a concise process route, and being easy to realize automatic assembly. Through the setting of the monitoring assembly, the temperature of the conductive busbar 100 can be monitored in real time to ensure driving safety.
[0035] Specifically, the monitoring sensor 200 includes a temperature sensing assembly 210. The pin 400 includes a first pin 410 electrically connected to the temperature sensing assembly 210. The free end of the first pin 410 is located within the connection port 310.
[0036] Further, the temperature sensing assembly 210 includes a temperature sensor 211 and a heat conducting member 212. The heat conducting member 212 has a cavity, the temperature sensor 211 is disposed within the cavity, and the heat conducting member 212 is in close contact with the surface of the conductive bus bar 100.
[0037] Further, a heat conducting silicone 500 is injected into the cavity, and the heat conducting silicone 500 covers at least the outer peripheral surface of the temperature sensor 211.
[0038] In a specific application, the temperature sensor is a negative temperature coefficient resistor, and its resistance value changes with the change in the temperature of the conductive bus bar 100. The temperature sensor is placed within the cavity of the heat conducting member 212, and the cavity is filled with the heat conducting silicone 500. The leads of the temperature sensor are led out from the heat conducting silicone 500 for connecting to the first pin 410, and the first pin 410 is electrically connected to the controller module at the mating end.
[0039] The temperature of the conductive bus bar 100 is conducted to the heat conducting silicone 500 through the heat conducting member 212. The heat conducting silicone 500 has very good heat conduction performance and transfers the temperature to the temperature sensor without loss. The resistance value of the temperature sensor changes according to the conducted temperature. Further, the voltage divider circuit in the controller module obtains the voltage on the temperature sensor according to the change in the resistance value, amplifies the voltage value on the temperature sensor through an operational amplifier, converts the analog signal into digital coding through an A / D converter, and transmits it through the bus of the A / D converter. The temperature information is obtained according to the application program for logic control applications. In this way, the temperature of the conductive bus bar 100 can be monitored in real time to ensure driving safety.
[0040] In one embodiment, in order to further enhance the heat conduction performance, the heat conducting member 212 is made of a metal heat conducting material, and at least a part of the bottom of the heat conducting member 212 is welded to the conductive bus bar 100. The heat generated by the conductive bus bar 100 can be quickly conducted through the heat conducting member 212 made of metal material. The welding method can adopt ultrasonic welding connection.
[0041] Even further, the monitoring sensor 200 further includes a current monitoring coil 220. The pin 400 includes a second pin 420 electrically connected to the current monitoring coil 220. The free end of the second pin 420 is located within the connection port 310.
[0042] The current monitoring coil 220 is used to monitor the current signal. The signal transmitted by the temperature sensor is a resistance signal. The current signal and the resistance signal are filtered by the filter circuit to remove clutter and harmonics, and then converted by the controller module. Finally, the current value and the temperature value of the aluminum busbar are obtained, so as to comprehensively monitor the current and temperature of the conductive busbar 100 and ensure the driving safety.
[0043] In a specific application, to ensure stability and safety, at least part of the current monitoring coil 220 is injection-molded inside the housing 300.
[0044] To ensure the insulation performance of the conductive busbar 100, at least part of the outer peripheral surface of the conductive busbar 100 is injection-molded with an insulating layer 600.
[0045] Furthermore, to ensure the insulation performance at the interface between the housing 300 and the insulating layer 600, a heat-shrinkable tube 700 is wrapped at the connection between the housing 300 and the insulating layer 600.
[0046] In an embodiment, thermal conductive silicone 500 is injected into the gap between the housing 300 and the conductive busbar 100, and the gap between the heat conductive member 212 and the conductive busbar 100 to enhance the heat transfer effect.
[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A conductive device with monitoring function, characterized in that: It includes a conductive bar, a monitoring assembly and a shell. The monitoring assembly includes a monitoring sensor and a pin electrically connected to the monitoring sensor. The bottom surface of the monitoring assembly is in close contact with part of the surface of the conductive bar. At least part of the outer peripheral surface of the monitoring assembly is injection-molded with a shell, and a connection port for plugging into a plug connector is formed at the free end of the pin.
2. The conductive device with monitoring function according to claim 1, characterized in that: The monitoring sensor includes a temperature sensing assembly, and the plug pin includes a first plug pin electrically connected to the temperature sensing assembly, wherein a free end of the first plug pin is located in the connection port.
3. The conductive device with monitoring function according to claim 2, characterized in that: The temperature sensing assembly comprises a temperature sensor and a heat conductive member, wherein the heat conductive member has a cavity, the temperature sensor is arranged in the cavity, and the heat conductive member is closely attached to the surface of the conductive bar.
4. The conductive device with monitoring function according to claim 3, characterized in that: Thermally conductive silica gel is injected into the cavity, and the thermally conductive silica gel covers at least the outer peripheral surface of the temperature sensor.
5. The conductive device with monitoring function according to claim 3, characterized in that: The heat conducting member is made of a metal heat conducting material, and at least a portion of the bottom of the heat conducting member is welded to the conductive bar.
6. The conductive device with monitoring function according to claim 1, characterized in that: The monitoring sensor further includes a current monitoring coil, the plug pin includes a second plug pin electrically connected to the current monitoring coil, and a free end of the second plug pin is located in the connection port.
7. The conductive device with monitoring function according to claim 6, characterized in that: At least a portion of the current monitoring coil is injection molded inside the housing.
8. The conductive device with monitoring function according to claim 1, characterized in that: An insulating layer is injection-molded on at least a portion of the outer peripheral surface of the conductive bar.
9. The conductive device with monitoring function according to claim 8, characterized in that: The connection between the shell and the insulating layer is covered with a heat shrink tube.
10. The conductive device with monitoring function according to claim 3, characterized in that: Thermally conductive silicone is injected into the gap between the shell and the conductive bar, and the gap between the heat conductive element and the conductive bar.