Novel temperature sensor protection structure

Abstract

The utility model discloses a novel temperature sensor protection structure, which belongs to the technical field of rail transit motor car axle box temperature sensors, and comprises a probe, a cover plate, a voltage stabilization module, a cable and a wiring terminal, and the wiring terminal is connected with the probe through the cable and the voltage stabilization module in sequence. The device further comprises a rubber hose connector, a wire protection rubber hose, a pressing buckle sleeve, an installation connector, a wire pressing sealing ring and a fastening nut. The rubber hose joint comprises a metal joint and a sealing ring; the protection of the novel shaft temperature sensor is improved to IP69K, and the probe is additionally provided with a metal adapter, a sealing ring, a line pressing sealing ring, a cloth clamping rubber pipe and other devices, so that the sealing performance and the impact resistance of the sensor probe are improved; the ice melting requirement of high-temperature and high-pressure water gun flushing in winter in the north can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit motor vehicle axle box temperature sensors, in particular to a novel temperature sensor protection structure. Background Art

[0002] Currently, some railway freight cars are equipped with axle temperature monitoring systems, which monitor axle temperatures in real time and generate alarms when bearing faults occur. These systems typically consist of a temperature alarm host and sensors. By detecting rapid temperature rises in the running parts of the freight car, which could signal a fault, they promptly issue audible and visual alarms, prompting the driver to take appropriate measures and prevent major accidents. The system records temperature changes and fault conditions at various monitored locations on the locomotive. These systems typically utilize 485, MVB, Ethernet, or other communication methods to communicate with other instruments, or feature local displays for data and alarms. Some models also offer data transfer to storage devices, providing real-time data for ground-based maintenance and technical analysis. Freight cars operate in challenging environments, necessitating a more adaptable axle temperature monitoring system.

[0003] The axle-end integrated speed sensor technology used in the CRH5 EMUs currently in operation all utilizes NXP's KMI 15 series sensor chips. This sensor technology has the following drawbacks: While the existing CRH5 EMU axle temperature sensors meet IP68 protection, they cannot withstand the multi-angle, high-temperature, and high-pressure water jet flushing required for winter de-icing and snow removal. A new axle temperature sensor that can meet these requirements is needed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a novel temperature sensor protection structure for the problems in the background technology of low protection level, inability to withstand low temperatures in the northern cold season, and inability to resist the impact of high-pressure water guns.

[0005] The present invention adopts the following technical solutions to solve the above technical problems:

[0006] The novel temperature sensor protection structure includes a probe, a cover, a voltage stabilizing module, a cable, and a terminal block. The terminal block is connected to the probe through the cable and the voltage stabilizing module in sequence. The structure also includes a hose connector, a wire protection hose, a crimping sleeve, an installation connector, a wire crimping seal, and a fastening nut. The hose connector includes a metal connector and a seal.

[0007] The probe is connected to the metal joint through a sealing ring, and the hose joint is connected to the buckle sleeve through a wire protection hose; the buckle sleeve is connected to the installation joint, and the installation joint is connected to the fastening nut through a wire pressing sealing ring.

[0008] Preferably, in the novel temperature sensor protection structure, the probe adopts a hexagonal opposite edge probe.

[0009] Preferably, the wire protection hose is a cloth-reinforced hose.

[0010] Preferably, the probe installation torque is 50 ± 2 N.m.

[0011] Preferably, the installation torque of the fastening nut is 20±1 N.m.

[0012] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0013] 1. The temperature sensor protection structure of this utility model includes a probe, a cover plate, a voltage stabilizing module, a cable, and a terminal block. The terminal block is connected to the probe through the cable and the voltage stabilizing module in sequence. It also includes a hose connector, a wire protection hose, a crimping sleeve, an installation connector, a wire crimping seal ring, and a fastening nut. The hose connector includes a metal connector and a seal ring. The new shaft temperature sensor has an improved protection level of IP69K. The probe has added a metal adapter connector, a seal ring, a wire crimping seal ring, a cloth-reinforced hose, and other components to improve the sealing and impact resistance of the sensor probe. It can meet the ice melting needs of high-temperature and high-pressure water gun flushing in northern winter.

[0014] 2. The sensor protection tube of this utility model uses a cloth-reinforced rubber hose, which can show good stability in high temperature and high pressure environments. Even in an environment of -45°C, the protection tube remains soft and does not crack;

[0015] 3. The metal connector designed for this sensor allows the sensor to be connected to a short metal probe at a 90° right angle, and the probe has a threaded rotation function;

[0016] 4. The voltage stabilizing module of the utility model is encapsulated with a stainless steel tube, which provides good protection performance and electromagnetic shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is the overall structural principle diagram of the new temperature sensor protection structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the dimensions of the new temperature sensor protection structure of the utility model;

[0020] Figure 3It is a partial schematic diagram of the protective structure of the new temperature sensor of the present utility model.

[0021] The specific numbers in the figure are as follows: 1-probe; 2-cover; 3-voltage stabilizing module; 4-cable; 5-terminal; 6-hose connector; 6-1-metal connector; 6-2-sealing ring; 7-wire protection hose; 8-pressed sleeve; 9-installation connector; 10-wire pressing sealing ring; 11-fastening nut. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings:

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is described in detail below based on the drawings and preferred embodiments. The purpose and effect of the present invention will become more clear. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0024] like Figure 1 、 Figure 2 and Figure 3 As shown, the novel temperature sensor protective structure comprises a probe 1, a cover plate 2, a voltage stabilizing module 3, a cable 4, and a terminal block 5. The terminal block 5 is connected to the probe 1 via the cable 4 and the voltage stabilizing module 3. The structure also includes a hose connector 6, a wire protection hose 7, a crimp sleeve 8, a mounting connector 9, a wire crimping seal 10, and a fastening nut 11. The hose connector 6 includes a metal connector 6-1 and a seal 6-2. The present invention improves the sealing and impact resistance of the sensor probe and can meet the needs of on-site ice and snow melting operations.

[0025] The probe 1 is connected to the metal joint 6-1 through the sealing ring 6-2, and the hose joint 6 is connected to the buckle sleeve 8 through the wire protection hose 7; the buckle sleeve 8 is connected to the installation joint 9, and the installation joint 9 is connected to the fastening nut 11 through the wire pressing sealing ring 10.

[0026] The probe 1 is a hexagonal opposite edge probe.

[0027] The wire protection hose 7 is a cloth-reinforced hose.

[0028] The installation torque of the probe 1 is 50 ± 2 N.m.

[0029] The installation torque of the fastening nut 11 is 20±1N.m.

[0030] The protection of the new shaft temperature sensor is upgraded to IP69K, and the probe has added metal adapter joints, sealing rings, wire sealing rings, cloth-reinforced hoses and other devices to improve the sealing and impact resistance of the sensor probe; it can meet the ice melting needs of high-temperature and high-pressure water gun flushing in northern winter; the sensor protective tube of this utility model uses a cloth-reinforced hose, which can show good stability in high temperature and high pressure environments. In an environment of -45°C, the protective tube is still soft and does not crack; the metal connector designed in this utility model allows the sensor to be connected to a short metal probe with a 90° right angle, and the probe has a threaded rotation function; the voltage stabilizing module of this utility model is encapsulated with a stainless steel pipe, and the steel pipe provides good protection performance and electromagnetic shielding effect.

[0031] It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited to the above implementation methods. As long as the technical effects of the present invention are achieved by the same means, they should fall within the scope of protection of the present invention.

Claims

1. A novel temperature sensor protection structure, comprising a probe (1), a cover plate (2), a voltage stabilizing module (3), a cable (4), and a terminal (5), wherein the terminal (5) is connected to the probe (1) in sequence through the cable (4) and the voltage stabilizing module (3), and is characterized in that: It also includes a hose joint (6), a wire protection hose (7), a buckle sleeve (8), a mounting joint (9), a wire pressing seal ring (10), and a fastening nut (11); the hose joint (6) includes a metal joint (6-1) and a seal ring (6-2); The probe (1) is connected to the metal joint (6-1) via a sealing ring (6-2); the hose joint (6) is connected to the buckle sleeve (8) via a wire protection hose (7); the buckle sleeve (8) is connected to the installation joint (9); and the installation joint (9) is connected to the fastening nut (11) via a wire pressing sealing ring (10).

2. The novel temperature sensor protection structure according to claim 1 is characterized in that: The probe (1) is a hexagonal opposite-edge probe.

3. The novel temperature sensor protection structure according to claim 1 is characterized in that: The wire protection hose (7) is a cloth-reinforced hose.

4. The novel temperature sensor protection structure according to claim 2 is characterized in that: The mounting torque of the probe (1) is 50 ± 2 Nm.

5. The novel temperature sensor protection structure according to claim 1 is characterized in that: The installation torque of the fastening nut (11) is 20±1N.m.

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