A tube-type oxygen sensor heat sink

Abstract

The utility model provides a kind of tubular oxygen sensor heat sink, it is related to tubular oxygen sensor technical field, including connecting pipe, the connecting pipe includes inner tube, one end of the inner tube is fixedly connected with connecting nut, the inside of the inner tube is provided with sensor body, one side of the connecting pipe is provided with connecting shell, the connecting shell includes surrounding shell, one end of the surrounding shell is fixedly connected with inner plug shell, the outer surface of the inner plug shell is slidably connected with the inner wall of inner tube.The utility model, by setting passage, and passage and air hole are correspondingly set, so that hot air can be dispersed outward from here, cooperate with the high heat dissipation performance of copper material, and the heat dissipation performance of silicon resin glass fiber, to further improve the heat dissipation effect of the equipment, prevent its overheating damage, in addition, the inside of surrounding pad is surrounded connecting sensor body and the connecting line of heater body, signal transmission is carried out.

Description

Technical Field

[0001] This utility model relates to the field of tubular oxygen sensor technology, and in particular to a heat dissipation device for tubular oxygen sensors. Background Technology

[0002] In existing technologies, such as the Chinese patent CN213022963U "A Tubular Automotive Oxygen Sensor", an inner shell layer is included. The surface of the inner shell layer has insertion holes. An outer shell layer A is inserted into one side of the outer wall of the inner shell layer through the insertion holes, and an outer shell layer B is inserted into the other side of the outer wall of the inner shell layer through the insertion holes. Foam cotton is adhered to the middle of the inner wall of the inner shell layer, and the foam cotton is fan-shaped. Limiting pins are welded to the top and bottom of the inner wall of the inner shell layer. Each limiting pin includes a rubber layer, a limiting block, and a clamping post. A limiting block is welded to the top of the clamping post, and a rubber layer is adhered to the top of the limiting block. This utility model of a tubular automotive oxygen sensor, while ensuring its wear resistance, increases its heat dissipation effect, resulting in good heat dissipation and preventing overheating damage. This utility model of a tubular automotive oxygen sensor is convenient for clamping different types of wires and provides a stable clamping.

[0003] Although the device uses materials with good heat dissipation, the basic shape of its surrounding structure remains unchanged, relying solely on the properties of the materials for heat dissipation, which limits the heat dissipation effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. The basic shape of the externally enclosing structural components remains unchanged, and heat dissipation is achieved solely through the properties of the materials, thus providing a heat dissipation device for a tubular oxygen sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tubular oxygen sensor heat dissipation device, comprising a connecting pipe, the connecting pipe including an inner pipe, one end of the inner pipe being fixedly connected to a connecting nut, a sensor body being disposed inside the inner pipe, a connecting outer shell being disposed on one side of the connecting pipe, the connecting outer shell including a surrounding shell, one end of the surrounding shell being fixedly connected to an inner insert shell, the outer surface of the inner insert shell being slidably connected to the inner wall of the inner pipe, a heat dissipation cavity being opened inside the surrounding shell, a vent hole being opened at the bottom of the heat dissipation cavity, a connector being snapped onto the inner wall of the surrounding shell, the connector including a heater body, the heater body being disposed inside the sensor body, one end of the heater body being fixedly connected to a surrounding pad, and a channel being opened on the outer surface of the surrounding pad.

[0006] In a preferred embodiment, the sensor body is disposed inside the inner tube, and the vent hole is positioned corresponding to the channel.

[0007] In a preferred embodiment, one end of the heater body is embedded inside the surrounding pad.

[0008] In a preferred embodiment, the cross-sectional diameter of the surrounding pad is larger than the diameter of one end of the sensor body.

[0009] In a preferred embodiment, the inner wall of the connecting nut is fixedly connected to the outer surface of the surrounding shell by threads.

[0010] In a preferred embodiment, both the surrounding shell and the inner insert shell are made of copper.

[0011] In a preferred embodiment, the surrounding pad is made of silicone glass fiber.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The surrounding pad of this invention is installed in the inner tube at one end and is clamped to the end of the sensor body with a baffle at the other end. The channel does not extend to the aforementioned end to prevent liquid in the inner tube from flowing to the outside. By setting the channel and the corresponding vent hole, hot air can be dissipated from here. Combined with the high heat dissipation performance of copper material and the heat dissipation performance of silicone resin glass fiber, the heat dissipation effect of the device is further improved, preventing it from overheating and being damaged. In addition, the connecting wire connecting the sensor body and the heater body is surrounded inside the surrounding pad for signal transmission. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a tubular oxygen sensor heat dissipation device provided by this utility model.

[0014] Figure 2 This is an exploded view of the structure of a tubular oxygen sensor heat dissipation device provided by this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the connecting shell of a tubular oxygen sensor heat dissipation device provided by this utility model.

[0016] Figure 4 This is a schematic diagram of the connection shell of a tubular oxygen sensor heat dissipation device provided by this utility model.

[0017] Legend: 1. Connecting pipe; 2. Connecting housing; 3. Connecting parts; 1. Connecting pipe; 11. Inner pipe; 12. Connecting nut; 13. Sensor body; 2. Connecting shell; 21. Surrounding shell; 22. Inner insert shell; 23. Heat dissipation cavity; 24. Vent hole; 3. Connector; 31. Heater body; 32. Surrounding pad; 33. Channel. Detailed Implementation

[0018] 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.

[0019] Example like Figure 1-4 As shown, this utility model provides a technical solution: a tubular oxygen sensor heat dissipation device, including a connecting pipe 1, the connecting pipe 1 including an inner pipe 11, one end of the inner pipe 11 is fixedly connected to a connecting nut 12, a sensor body 13 is disposed inside the inner pipe 11, a connecting shell 2 is disposed on one side of the connecting pipe 1, the connecting shell 2 including a surrounding shell 21, one end of the surrounding shell 21 is fixedly connected to an inner insert shell 22, the outer surface of the inner insert shell 22 is slidably connected to the inner wall of the inner pipe 11, a heat dissipation cavity 23 is opened inside the surrounding shell 21, a vent hole 24 is opened at the bottom of the heat dissipation cavity 23, and a connector 3 is engaged with the inner wall of the surrounding shell 21, the connector 3 including a... The heater body 31 is located inside the sensor body 13. One end of the heater body 31 is fixedly connected to a surrounding pad 32. The outer surface of the surrounding pad 32 has a channel 33. The sensor body 13 is located inside the inner tube 11. The vent hole 24 is positioned corresponding to the channel 33. One end of the heater body 31 is embedded inside the surrounding pad 32. The cross-sectional diameter of the surrounding pad 32 is larger than the diameter of one end of the sensor body 13. The inner wall of the connecting nut 12 is fixedly connected to the outer surface of the surrounding shell 21 by threads. Both the surrounding shell 21 and the inner insert shell 22 are made of copper material, and the surrounding pad 32 is made of silicone resin glass fiber.

[0020] In this embodiment, one end of the surrounding pad 32 is installed in the inner tube 11, and the other end is the end with a baffle that is clamped to the sensor body 13. The channel 33 does not extend to the aforementioned end to prevent the liquid in the inner tube 11 from flowing to the outside. By setting the channel 33, and the channel 33 and the vent 24 being correspondingly set, hot air can be dissipated from here. Combined with the high heat dissipation performance of the copper material and the heat dissipation performance of the silicone glass fiber, the heat dissipation effect of the device is further improved, preventing it from overheating and being damaged. In addition, the inside of the surrounding pad 32 surrounds the connecting wire connecting the sensor body 13 and the heater body 31 for signal transmission.

[0021] Working principle: like Figure 1-4As shown, in the actual assembly process, the sensor body 13 is first installed inside the inner tube 11, with one end of the sensor body 13 abutting against the inner wall step of the inner tube 11. The heater body 31 extends into the central channel of the sensor body 13, ensuring that its heating area corresponds to the sensitive element of the sensor body 13. Then, the inner insert shell 22 is inserted into the port of the inner tube 11. The connecting tube 1 and the connecting shell 2 are fixed by the threaded engagement of the connecting nut 12 and the outer surface of the surrounding shell 21. When the sensor body 13 generates heat during operation, the heat is transferred through the inner tube 11 to the copper inner insert shell 22 and the surrounding shell 21, forming a heat exchange space in the heat dissipation cavity 23. At the same time, the excess heat generated by the heater body 31 is collected through the channel 33 of the surrounding pad 32 to the vent 24, and finally completes heat exchange with the outside air through the outer wall of the surrounding shell 21, realizing a dual heat dissipation path. The surrounding pad 32 made of silicone resin glass fiber material can effectively isolate electromagnetic interference while ensuring heat dissipation efficiency, avoiding signal interference between the heater body 31 and the sensor body 13, and improving the stability of the device operation.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat dissipation device for a tubular oxygen sensor, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) includes an inner pipe (11), one end of which is fixedly connected to a connecting nut (12). A sensor body (13) is disposed inside the inner pipe (11). A connecting shell (2) is disposed on one side of the connecting pipe (1). The connecting shell (2) includes a surrounding shell (21). One end of the surrounding shell (21) is fixedly connected to an inner insert shell (22). The outer surface of the inner insert shell (22) is slidably connected to the inner wall of the inner pipe (11). A heat dissipation cavity (23) is opened inside the surrounding shell (21). A vent hole (24) is opened at the bottom of the heat dissipation cavity (23). A connector (3) is snapped onto the inner wall of the surrounding shell (21). The connector (3) includes a heater body (31). The heater body (31) is disposed inside the sensor body (13). One end of the heater body (31) is fixedly connected to a surrounding pad (32). A channel (33) is opened on the outer surface of the surrounding pad (32).

2. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: The sensor body (13) is located inside the inner tube (11), and the vent (24) is positioned corresponding to the channel (33).

3. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: One end of the heater body (31) is embedded inside the surrounding pad (32).

4. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: The cross-sectional diameter of the surrounding pad (32) is larger than the diameter of one end of the sensor body (13).

5. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: The inner wall of the connecting nut (12) is fixedly connected to the outer surface of the surrounding shell (21) by threads.

6. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: Both the surrounding shell (21) and the inner insert shell (22) are made of copper.

7. The heat dissipation device for a tubular oxygen sensor according to claim 1, characterized in that: The surrounding pad (32) is made of silicone glass fiber.

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