Split type cooling liquid temperature sensor

Abstract

The utility model discloses a split type cooling liquid temperature sensor, which comprises a connecting pipe and a temperature sensor body, the middle part of the connecting pipe is connected with a mounting pipe, the temperature sensor body comprises a metal bottom shell, a plastic part and a thermistor, the upper end of the metal bottom shell is provided with a notch, and 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 installed in the metal bottom shell. According to the split type cooling liquid temperature sensor, the connecting pipe and the temperature sensor body can be conveniently assembled or disassembled, so that the whole cooling liquid temperature sensor is convenient to install, and the temperature sensor body is convenient to maintain or replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature sensors, and particularly relates to a split coolant temperature sensor. Background Art

[0002] Existing coolant temperature sensors can be designed as an integrated type, or a connecting pipe can be not used, and an installation hole is directly opened at the temperature measuring part for installation. The integrated coolant temperature sensor has good product quality and long service life, but has high molding requirements, high cost, and inconvenient maintenance of the temperature sensor. The directly installed temperature sensor has a simple structure, but corresponding installation holes need to be designed at the installation part, and the installation process has high requirements. Therefore, it is necessary to design a new split coolant temperature sensor to meet different usage needs. Content of the Utility Model

[0003] To solve the above technical problems, the technical solution adopted by the utility model is: a split coolant temperature sensor, including a connecting pipe and a temperature sensor body. Plugs are respectively arranged at both ends of the connecting pipe. An installation pipe is connected to the middle of the connecting pipe. The installation pipe communicates with the inside of the connecting pipe through an insertion port. The temperature sensor body includes a metal bottom shell, a plastic part and a thermistor. A notch for inserting the lower end of the plastic part is arranged at the upper end of the metal bottom shell. 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. A plugging groove is arranged at the upper end of the plastic part. A wire is arranged inside the plastic part. A conductive head is fixedly connected in the plugging groove. The wire is connected to the conductive head. The thermistor is connected to the wire. A plugging section and a riveting section are arranged on the plastic part. The diameter of the plugging section is smaller than that of the riveting section. A riveting platform is arranged on the riveting section. A riveting part, a plugging part and an induction part are sequentially arranged on the metal bottom shell. The plugging section is inserted into the plugging part. The riveting section is inserted into the riveting part. The upper end of the riveting part is riveted and bent inward to closely adhere to the riveting platform. The riveting part and the plugging part are both located in the installation pipe. The induction part passes through the insertion port and extends into the inside of the connecting pipe. A sealing ring is sleeved on the plugging part. The sealing ring is clamped between the plugging part and the installation pipe.

[0004] As a preference of the above technical solution, a sealing ring is sleeved between the plugging section and the riveting section.

[0005] As a preference of the above technical solution, the wire is a copper sheet, and the thermistor is connected through a conductive rod.

[0006] As a preference of the above technical solution, an insulating barrier sheet is arranged between adjacent conductive rods. The upper end of the insulating barrier sheet is fixedly connected to the plastic part. A receiving groove for receiving the thermistor is arranged at the lower end of the insulating barrier sheet. The insulating barrier sheet and the plastic part are integrally formed.

[0007] As a preference of the above technical solution, the metal bottom shell is made of copper.

[0008] As a preference of the above technical solution, clamping grooves are respectively arranged on both sides of the upper end of the installation pipe, the clamping grooves communicate with the interior of the installation pipe, a U-shaped retaining spring is installed on the installation pipe, and both sides of the U-shaped retaining spring are respectively clamped into the clamping grooves and clamp the riveting section.

[0009] The beneficial effects of the present utility model are as follows: for the split coolant temperature sensor of the present utility model, the connecting pipe and the temperature sensor body can be conveniently assembled or disassembled, which not only facilitates the installation of the entire coolant temperature sensor, but also facilitates the maintenance or replacement of the temperature sensor body. Description of the Drawings

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

[0011] Figure 2 is a cross-sectional structural schematic diagram of the present utility model

[0012] Figure 3 is a cross-sectional structural schematic diagram of the present utility model from another angle. Detailed Embodiments

[0013] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0014] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0015] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0016] As Figure 1-2 shown, the split-type coolant temperature sensor includes a connecting pipe 1 and a temperature sensor body. Plugs 2 are respectively provided at both ends of the connecting pipe 1. An installation pipe 3 is connected to the middle of the connecting pipe 1. The installation pipe 3 communicates with the inside of the connecting pipe 1 through an insertion port 4. The temperature sensor body includes a metal bottom shell 5, a plastic part 6, and a thermistor 7. A notch 8 for inserting the lower end of the plastic part 6 is provided at the upper end of the metal bottom shell 5. The lower end of the metal bottom shell 5 is sealed. The upper end of the metal bottom shell 5 is riveted to the plastic part 6. The thermistor 7 is installed inside the metal bottom shell 5. A plug-in slot 9 is provided at the upper end of the plastic part 6. A wire is provided inside the plastic part 6. A conductive head 10 is fixedly connected in the plug-in slot 9. The wire is connected to the conductive head 10, and the thermistor 7 is connected to the wire. The plastic part 6 is provided with a plug-in section 11 and a riveting section 12. The diameter of the plug-in section 11 is smaller than that of the riveting section 12. A riveting platform 13 is provided on the riveting section 12. The metal bottom shell 5 is successively provided with a riveting part 14, a plug-in part 15, and an induction part 16. The plug-in section 11 is inserted into the plug-in part 15, and the riveting section 12 is inserted into the riveting part 14. The upper end of the riveting part 14 is riveted and bent inward to closely adhere to the riveting platform 13. Both the riveting part 14 and the plug-in part 15 are located in the installation pipe 3. The induction part 16 passes through the insertion port 4 and extends into the inside of the connecting pipe 1. A sealing ring 17 is sleeved on the plug-in part 15. The sealing ring 17 is clamped between the plug-in part 15 and the installation pipe 3. The sealing ring 17 improves the sealing performance of the connection between the temperature sensor body and the installation pipe 3 on the connecting pipe 1, preventing substances inside the connecting pipe 1 from leaking from the installation pipe 3.

[0017] Further, a sealing ring 18 is sleeved between the plug-in section 11 and the riveting section 12. The sealing ring 18 improves the sealing performance of the connection between the metal bottom shell 5 and the plastic part 6, preventing external air, etc. from entering the inside of the metal bottom shell 5 and affecting the accuracy of temperature measurement when contacting the thermistor 7.

[0018] Further, the wire is a copper sheet, and the thermistor 7 is connected through a conductive rod 19.

[0019] Further, an insulating barrier sheet 20 is provided between adjacent conductive rods 19. The upper end of the insulating barrier sheet 20 is fixedly connected to the plastic part 6. A receiving groove 21 for receiving the thermistor 7 is provided at the lower end of the insulating barrier sheet 20. The insulating barrier sheet 20 is integrally formed with the plastic part 6. The insulating barrier sheet 20 prevents the conductive rods 19 from contacting and short-circuiting due to shaking. Generally, the number of conductive rods 19 is two, which are respectively connected to both ends of the thermistor 7.

[0020] Further, the metal bottom shell 5 is made of copper. The metal bottom shell 5 made of copper has good thermal conductivity and is easy to form.

[0021] Further, clamping grooves 22 are respectively arranged on both sides of the upper end of the mounting pipe 3. The clamping grooves 22 communicate with the interior of the mounting pipe 3. A U-shaped clamping spring 23 is mounted on the mounting pipe 3. Both sides of the U-shaped clamping spring 23 are respectively clamped into the clamping grooves 22 and tightly riveted to the riveting section 12. Card slots for both sides of the U-shaped clamping spring 23 to be inserted are respectively arranged on both sides of the plastic part 6. The sensor body is fixed by the U-shaped clamping spring 23 to prevent the plastic part 6 from moving up and down and rotating.

[0022] It is worth mentioning that technical features such as thermistors involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, possible control methods, and spatial arrangement methods of these technical features, conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0023] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. Split coolant temperature sensor, characterized in that: The invention comprises a connecting tube and a temperature sensor body. The two ends of the connecting tube are respectively provided with plugs. The middle of the connecting tube is connected with a mounting tube. The mounting tube is connected with the interior of the connecting tube through an insertion port. The temperature sensor body 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 interior 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, a plug-in part and a sensing part in sequence. The plug-in section is inserted into the plug-in part, and the riveted section is inserted into the riveted part. The upper end of the riveted part is riveted inwardly and bent to be close to the riveting platform. The riveted part and the plug-in part are both located in the mounting tube. The sensing part extends into the interior of the connecting tube through the insertion port. A sealing ring is sleeved on the plug-in part, and the sealing ring is clamped between the plug-in part and the mounting tube.

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

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

4. The split coolant temperature sensor according to 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 split coolant temperature sensor according to claim 1, characterized in that: The metal bottom shell is made of copper.

6. The split coolant temperature sensor according to claim 1, characterized in that: The upper ends of the mounting tubes are provided with clamping grooves on both sides, the clamping grooves are connected to the interior of the mounting tubes, and the mounting tubes are provided with U-shaped clamping springs, the two sides of the U-shaped clamping springs are respectively clamped into the clamping grooves and clamp the riveted sections.

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