Waterproof shock-resistant temperature sensor

Abstract

The utility model discloses a waterproof anti-seismic temperature sensor, which comprises a temperature sensing element, a temperature sensor body, a signal terminal, a plug-in and an anti-seismic node, the temperature sensing element and the signal terminal are connected through an anti-seismic node, and the temperature sensor body and the plug-in are connected into a whole through casting; the sensor signal terminal is connected to the temperature sensing element through the anti-seismic node, and the external shape of the signal terminal is that an upper plug-in unit is a cylindrical body with a kidney-shaped cross section, and a lower temperature sensing element is arranged in the temperature sensor body and is in a taper pipe thread and hexagonal prism screw plug shape. The external display device is connected with the plug-in, the signal terminal is connected with the temperature sensor body, and the temperature sensing element is arranged in the temperature sensor body and installed on a temperature measuring point of an engine through the screw-plug-shaped taper pipe in a threaded mode. According to the utility model, the waterproof plug-in and the temperature sensor body are cast into a whole, thereby avoiding the leakage at the connection part, avoiding the possible open circuit or short circuit at the connection part, omitting the cable connection, and being compact in structure and exquisite in appearance.

Description

Technical Field

[0001] The utility model relates to the technical field of engine accessories, in particular to a waterproof and shock-resistant temperature sensor. Background Art

[0002] At present, in the diesel engine electronic control system, most of the temperature sensors used in the vehicle instruments use sheet or screw-type temperature sensors for temperature detection. The wiring harness connections of these two temperature sensors are not waterproof. After the sheet or screw-type temperature sensors are connected, they are easy to fall off and fail when the engine is running at high speed. In addition, the installation and removal are inconvenient, time-consuming and labor-intensive.

[0003] In addition, after the sheet or screw-type temperature sensor is installed on the engine body, it is very easy to cause the internal circuit of the temperature sensor to open when the engine is running at high speed (strong vibration), thereby causing the sensor to fail, greatly increasing the market failure rate of the engine. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the existing waterproof and shock-resistant temperature sensors, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a waterproof and shock-resistant temperature sensor, whose temperature sensing element and signal terminal are connected through gold-plated shock-resistant nodes. It can be used in strong vibration and strong impact environments, can effectively improve the service life of the temperature sensor, and broaden the scope of use.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a waterproof and shockproof temperature sensor, comprising a temperature sensing element, a temperature sensor body, a signal terminal, a plug-in and a shockproof node;

[0008] The temperature sensing element and the signal terminal are connected via a seismic node, wherein the temperature sensor body and the plug-in are connected as one body via casting;

[0009] The sensor signal terminal is connected to the temperature sensing element through an anti-seismic node. The external shape of the signal terminal is that its upper plug-in is a columnar body with a waist-shaped cross-section, and the lower temperature sensing element is built into the temperature sensor body, which is a tapered pipe thread and a hexagonal plug-shaped screw; the external display device connection plug-in connects the signal terminal to connect with the temperature sensor body, the temperature sensing element is built into the temperature sensor body, and is installed on the temperature measurement point of the engine through the tapered pipe thread of the screw plug. When the temperature at the measuring point increases or decreases, the internal resistance of the temperature sensing element also decreases or increases accordingly, and is transmitted to the measurement module through the signal terminal. The measurement module transmits the current temperature value to the external display device through conversion.

[0010] As a preferred solution of the waterproof and shock-resistant temperature sensor of the utility model, the temperature sensing element is a negative temperature coefficient thermistor NTC, PT100 or PT1000, which can be selected according to needs.

[0011] As a preferred solution of the waterproof and shock-resistant temperature sensor of the utility model, the outer shell of the temperature sensor body is made of stainless steel or brass.

[0012] As a preferred solution of the waterproof and shock-resistant temperature sensor of the utility model, the signal terminal is made of copper with a silver-plated surface.

[0013] As a preferred solution of the waterproof and shock-resistant temperature sensor of the utility model, the plug-in is a two-core waterproof plug-in with a protection level of up to IP65.

[0014] As a preferred solution of the waterproof and shock-resistant temperature sensor of the utility model, the shock-resistant nodes are gold-plated node links, which are suitable for strong vibration and strong impact environments.

[0015] Beneficial effects of the utility model: The utility model uses a waterproof plug-in and a temperature sensor body cast into one body, avoiding leakage at the connection, avoiding the possibility of open circuit or short circuit at the connection, eliminating the cable connection in the middle, compact structure, and exquisite appearance. The plug-in is a sealed structure, which can effectively prevent water from entering the internal signal terminal and corroding it, and the protection level can reach IP65. The temperature sensing element and the signal terminal are connected by gold-plated anti-seismic nodes, which can be used in strong vibration and strong impact environments, can effectively increase the service life of the temperature sensor, and broaden the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the waterproof and shock-resistant temperature sensor of the utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the waterproof and shock-resistant temperature sensor of the utility model in the direction of A.

[0019] Figure 3 This is a schematic diagram of the internal structure of the waterproof and shock-resistant temperature sensor of the utility model.

[0020] Figure 4 The figure is a schematic diagram of the installation work of the waterproof and shock-resistant temperature sensor of the utility model. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Reference Figure 1-Figure 4 , a waterproof and shock-resistant temperature sensor is provided, comprising a temperature sensing element 1, a temperature sensor body 2, a signal terminal 3, a plug-in 4 and a shock-resistant node 5;

[0026] The temperature sensing element 1 and the signal terminal 3 are connected via a seismic node 5, and the temperature sensor body 2 and the plug-in 4 are connected as one body via casting;

[0027] Among them, the sensor signal terminal 3 is connected to the temperature sensing element 1 through the anti-seismic node 5, and the external shape of the signal terminal 3 is that its upper plug-in 4 is a columnar body with a waist-shaped cross-section, and the lower temperature sensing element 1 is built into the temperature sensor body 2, which is a tapered pipe thread, a hexagonal plug-shaped screw; the external display device connection plug-in 4 connects the signal terminal 3 to connect with the temperature sensor body 2, the temperature sensing element 1 is built into the temperature sensor body 2, and is installed on the temperature measurement point of the engine through a screw-shaped tapered pipe thread. When the temperature at the measuring point increases or decreases, the internal resistance of the temperature sensing element 1 also decreases or increases accordingly, and is transmitted to the measurement module through the signal terminal 3, and the measurement module transmits it to the external display device through conversion to display the current temperature value.

[0028] Among them, the temperature sensing element 1 is a negative temperature coefficient thermistor NTC, PT100 or PT1000, which can be selected according to needs. The shell material of the temperature sensor body 2 is stainless steel or brass, the signal terminal 3 is copper, and the surface is silver-plated. The plug-in 4 is a two-core waterproof plug-in with a protection level of IP65. The seismic node 5 is a gold-plated node link, which is suitable for strong vibration and strong impact environments.

[0029] The utility model uses a waterproof plug-in and a temperature sensor body cast into one body to avoid leakage at the connection, avoid the possibility of open circuit or short circuit at the connection, save the cable connection in the middle, compact structure and beautiful appearance. The plug-in is a sealed structure, which can effectively prevent water from entering the internal signal terminal and corroding it. The protection level can reach IP65. The temperature sensing element and the signal terminal are connected by gold-plated anti-seismic nodes, which can be used in strong vibration and strong impact environments, can effectively improve the service life of the temperature sensor, and broaden the scope of use.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A waterproof and shock-resistant temperature sensor, characterized in that: It comprises a temperature sensing element (1), a temperature sensor body (2), a signal terminal (3), a plug-in unit (4) and an anti-vibration node (5); The temperature sensing element (1) and the signal terminal (3) are connected via a seismic node (5), wherein the temperature sensor body (2) and the plug-in unit (4) are connected as one body via casting; The sensor signal terminal (3) is connected to the temperature sensing element (1) through an anti-seismic node (5); the external shape of the signal terminal (3) is that the upper plug-in (4) is a columnar body with a waist-shaped cross-section; the lower temperature sensing element (1) is built into the temperature sensor body (2) and is in the shape of a screw plug with a tapered pipe thread and a hexagonal prism; the external display device connection plug-in (4) is connected to the signal terminal (3) to connect with the temperature sensor body (2); the temperature sensing element (1) is built into the temperature sensor body (2) and is installed on the temperature measurement point of the engine through the screw plug-shaped tapered pipe thread; when the temperature at the measurement point increases or decreases, the internal resistance of the temperature sensing element (1) also decreases or increases accordingly, and is transmitted to the measurement module through the signal terminal (3); the measurement module transmits the current temperature value to the external display device through conversion.

2. The waterproof and shock-resistant temperature sensor according to claim 1, characterized in that: The temperature sensing element (1) is a negative temperature coefficient thermistor NTC, PT100 or PT1000, which can be selected according to needs.

3. The waterproof and shock-resistant temperature sensor according to claim 2, characterized in that: The outer shell of the temperature sensor body (2) is made of stainless steel or brass.

4. The waterproof and shock-resistant temperature sensor according to claim 3, characterized in that: The signal terminal (3) is made of copper and has a silver-plated surface.

5. The waterproof and shock-resistant temperature sensor according to claim 1, characterized in that: The plug-in (4) is a two-core waterproof plug-in, and the protection level can reach IP65.

6. The waterproof and shock-resistant temperature sensor according to claim 5, characterized in that: The anti-vibration node (5) is a gold-plated node link, which is suitable for strong vibration and strong impact environments.

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