Cooling liquid temperature sensor convenient to assemble

Abstract

The utility model discloses a cooling liquid temperature sensor convenient to assemble, which comprises a metal bottom shell, a plastic part and a thermistor, the upper end of the metal bottom shell is provided with a notch for the insertion of the lower end of the plastic part, the lower end of the metal bottom shell is sealed, the upper end of the metal bottom shell is riveted with the plastic part, and the thermistor is arranged in the metal bottom shell. The upper end of the plastic part is provided with a plug-in groove, a wire is arranged in the plastic part, a conductive head is fixedly connected in the plug-in groove, the wire is connected with the conductive head, and the thermistor is connected with the wire. According to the cooling liquid temperature sensor convenient to assemble, the temperature sensor is assembled in a riveting mode, the machining difficulty of all parts of the temperature sensor is reduced, and the production efficiency of the temperature sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature sensors, and in particular relates to a coolant temperature sensor which is easy to assemble. Background Art

[0002] The coolant temperature sensor in the car is used to sense the coolant temperature in real time. Due to different car models, the structure of the coolant temperature sensor is also different. The existing coolant temperature sensor needs to consider the sealing problem of assembly, which leads to the complex structure of the temperature sensor itself and the cumbersome assembly process. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: a coolant temperature sensor which is easy to assemble, comprising a metal bottom shell, a plastic part and a thermistor, wherein the upper end of the metal bottom shell is provided with a notch for inserting the lower end of the plastic part, the lower end of the metal bottom shell is sealed, the upper end of the metal bottom shell is riveted to the plastic part, the thermistor is installed inside the metal bottom shell, the upper end of the plastic part is provided with a plug-in slot, the inside of the plastic part is provided with a wire, a conductive head is fixedly connected in the plug-in slot, the wire is connected to the conductive head, and the thermistor is connected to the wire.

[0004] As a preferred embodiment of the above technical solution, the plastic part is provided with an inserting section and a riveting section, the diameter of the inserting section is smaller than the diameter of the riveting section, the riveting section is provided with a riveting platform, the metal bottom shell is provided with a riveting part and an inserting part, the inserting section is inserted into the inserting part, the riveting section is inserted into the riveting part, and the upper end of the riveted part is riveted inward and bent to be tightly attached to the riveting platform.

[0005] As a preferred embodiment of the above technical solution, a sealing ring is provided between the plug-in section and the riveted section.

[0006] As a preferred embodiment of the above technical solution, the wire is a copper sheet, and the thermistor is connected via a conductive rod.

[0007] As a preferred embodiment of the above technical solution, an insulating barrier sheet is provided between adjacent conductive rods, the upper end of the insulating barrier sheet is fixedly connected to the plastic part, the lower end of the insulating barrier sheet is provided with a receiving groove for receiving the thermistor, and the insulating barrier sheet and the plastic part are integrally formed.

[0008] As a preferred embodiment of the above technical solution, the metal bottom shell is made of copper.

[0009] The beneficial effects of the utility model are as follows: the coolant temperature sensor of the utility model is easy to assemble, and the temperature sensor is assembled by riveting, which reduces the processing difficulty of various components of the temperature sensor and improves the production efficiency of the temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model from another angle. DETAILED DESCRIPTION

[0013] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] like Figure 1-3 As shown, the coolant temperature sensor which is easy to assemble includes a metal bottom shell 1, a plastic part 2 and a thermistor 3. The upper end of the metal bottom shell 1 is provided with a notch for inserting the lower end of the plastic part 2, the lower end of the metal bottom shell 1 is sealed, the upper end of the metal bottom shell 1 is riveted to the plastic part 2, the thermistor 3 is installed inside the metal bottom shell 1, the upper end of the plastic part 2 is provided with a plug-in slot 5, the inside of the plastic part 2 is provided with a wire, a conductive head 6 is fixedly connected in the plug-in slot 5, the wire is connected to the conductive head 6, and the thermistor 3 is connected to the wire.

[0017] Furthermore, the plastic part 2 is provided with a plug-in section 7 and a riveted section 8, the diameter of the plug-in section 7 is smaller than the diameter of the riveted section 8, the riveted section 8 is provided with a riveting platform 9, the metal bottom shell 1 is provided with a riveted portion 10 and a plug-in section 11, the plug-in section 7 is inserted into the plug-in section 11, the riveted section 8 is inserted into the riveted section 10, and the upper end of the riveted portion 10 is riveted inwardly and bent to be close to the riveted platform 9. The upper end of the riveted portion 10 is bent inwardly so that the metal bottom shell 1 and the plastic part 2 are riveted. An external thread can be provided at the plug-in section 11 to facilitate the installation of the entire temperature sensor. A sealing ring can be sleeved on the plug-in section 11 to improve the sealing of the temperature sensor installation.

[0018] Furthermore, a sealing ring 12 is provided between the plug section 7 and the riveted section 8. A support platform 17 is formed between the riveted portion 10 and the plug section 11, and the sealing ring 12 is sandwiched between the support platform 17 and the riveted section 8, so as to improve the sealing performance of the connection between the metal bottom shell 1 and the plastic part 2.

[0019] Further, the conductor is a copper sheet 13, and the thermistor 3 is connected via a conductive rod 14. In order to improve the firmness of the connection between the copper sheet 13 and the plastic part 2, a plurality of through holes can be provided on the copper sheet 13, and the plastic part 2 is formed by embedding the copper sheet 13 in the molten material during the plastic molding process.

[0020] Furthermore, an insulating barrier sheet 15 is provided between adjacent conductive rods 14, the upper end of the insulating barrier sheet 15 is fixedly connected to the plastic part 2, and the lower end of the insulating barrier sheet 15 is provided with a receiving groove 16 for receiving the thermistor 3, and the insulating barrier sheet 15 is integrally formed with the plastic part 2. The insulating barrier sheet 15 prevents the two conductive rods 14 from contacting each other and causing a short circuit, and at the same time, the receiving groove 16 is used to limit the excessive shaking of the thermistor 3 due to external force, thereby improving the service life of the temperature sensor.

[0021] Furthermore, the metal bottom shell 1 is made of copper. The metal bottom shell 1 made of copper has good thermal conductivity.

[0022] It is worth mentioning that the technical features such as thermistors involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0023] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. The coolant temperature sensor is easy to assemble, characterized in that: The invention comprises a metal bottom shell, a plastic part and a thermistor. The upper end of the metal bottom shell is provided with a notch for inserting the lower end of the plastic part, the lower end of the metal bottom shell is sealed, the upper end of the metal bottom shell is riveted to the plastic part, the thermistor is installed inside the metal bottom shell, the upper end of the plastic part is provided with a plug-in slot, the inside of the plastic part is provided with a wire, a conductive head is fixedly connected in the plug-in slot, the wire is connected to the conductive head, and the thermistor is connected to the wire, the plastic part is provided with a plug-in section and a riveted section, the diameter of the plug-in section is smaller than the diameter of the riveted section, the riveted section is provided with a riveting platform, the metal bottom shell is provided with a riveted part and a plug-in part, the plug-in section is inserted into the plug-in part, the riveted section is inserted into the riveted part, and the upper end of the riveted part is riveted inwardly and bent to be close to the riveting platform.

2. The coolant temperature sensor that is easy to assemble as claimed in claim 1, characterized in that: A sealing ring is sleeved between the plug-in section and the riveted section.

3. The coolant temperature sensor that is easy to assemble as claimed in claim 1, characterized in that: The conductor is a copper sheet, and the thermistor is connected via a conductive rod.

4. The coolant temperature sensor that is easy to assemble as claimed in claim 3, characterized in that: An insulating barrier sheet is provided between adjacent conductive rods, the upper end of the insulating barrier sheet is fixedly connected to the plastic part, the lower end of the insulating barrier sheet is provided with a receiving groove for receiving the thermistor, and the insulating barrier sheet and the plastic part are integrally formed.

5. The coolant temperature sensor that is easy to assemble as claimed in claim 1, characterized in that: The metal bottom shell is made of copper.

6. The coolant temperature sensor that is easy to assemble as claimed in claim 1, characterized in that: A sealing ring is sleeved on the plug-in portion.

Images