Shockproof temperature sensor

Abstract

The utility model discloses a shockproof temperature sensor, and belongs to the technical field of sensors. A shockproof temperature sensor comprises a housing, and also comprises a spring needle, the housing is internally provided with a fixed seat, and the housing of the spring needle is fixedly arranged in the fixed seat; a pin of the thermistor is in welded connection with a pin of the spring needle; according to the utility model, the PIN structure of the temperature sensor adopts the Pogo structure, the extension length of the PIN can be adjusted according to actual requirements, the vibration stress in the operation of a vehicle is buffered, the hard contact between the PIN and a PCB is avoided, the Pogo structure is released through the spring when being stressed, and the influence of the vibration stress on a core device of the sensor is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to a shockproof temperature sensor. BACKGROUND

[0002] Temperature sensor refers to the sensor that can feel temperature and convert into available output signal. Temperature sensor is the core part of temperature measuring instrument, and the variety is numerous. According to the measuring mode, it can be divided into two categories of contact type and non-contact type, and according to the sensor material and electronic component characteristics, it can be divided into two categories of thermal resistance and thermocouple.

[0003] The PIN needle position of the temperature sensor connector is fixed on the connector and forms physical contact with the opposite end. After the physical contact of the PIN needle fixed on the injection molded connector with the opposite end, the PIN needle is easily damaged by the friction and collision with the opposite end due to the vibration during the operation of the automobile. UTILITY MODEL CONTENT

[0004] The utility model discloses a shockproof temperature sensor to solve the problem that vibration easily causes PIN needle and opposite end friction collision and leads to damage in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A shockproof temperature sensor, comprising a shell, further comprising: a spring needle, a fixed seat is arranged in the shell, and the spring needle shell is fixedly arranged in the fixed seat; a thermistor, the pin of the thermistor is welded with the pin of the spring needle.

[0007] In order to conveniently install the fixed seat and the spring needle in the shell, preferably, further comprising a protective shell, an installation groove is formed in one end of the shell, the outer wall of the protective shell is connected in the installation groove in interference, a limiting groove is formed in the protective shell, one end of the fixed seat is slidably arranged in the limiting groove, and the other end surface of the fixed seat abuts against the bottom in the installation groove, and the end of the protective shell extending into the installation groove abuts against the end surface of the fixed seat.

[0008] In order to improve the sealing effect between the fixed seat and the protective shell, further, a sealing pad is sleeved on the fixed seat, and the end of the sealing pad away from the fixed seat abuts against the protective shell.

[0009] In order to ensure that the position of the protective shell on the shell is fixed reliably, further, a guide block is fixedly arranged on the outer wall of the protective shell, a guide groove is formed in the end face of the installation groove mouth, and the guide block is slidably arranged in the guide groove.

[0010] Preferably, the pins of the thermistor and the spring needle are fixedly connected through epoxy resin.

[0011] Preferably, the other end of the shell is fixedly provided with a threaded rod, a mounting cylinder is threadedly connected to the threaded rod, and a sealing ring is arranged in the mounting cylinder mouth and abuts against the other end of the shell.

[0012] Compared with the prior art, the shockproof temperature sensor has the following beneficial effects:

[0013] 1. The shockproof temperature sensor has the elastic expansion effect by adopting the spring pin 2 structure of the temperature sensor PIN pin, can buffer the vibration stress influence in the vehicle operation, reduces the PIN pin damage caused by the collision process, and the PIN pin extension length on the spring pin 2 can be selected according to the actual demand, the structure space utilization is relatively high, the appearance is relatively good, the insulation withstand voltage capacity is strong, the protection performance is high, and the like, which is helpful to popularize and use.

[0014] 2. The shockproof temperature sensor is connected by injection molding of the spring pin shell and the fixing seat, which can improve the fixing effect, prevent sliding during use, affect normal use, and has good insulation effect and high protection performance, which is helpful to popularize and use.

[0015] The parts not involved in the device are the same as or can be realized by the prior art, the PIN pin structure of the temperature sensor is adopted by the Pogo structure, the PIN pin extension length can be adjusted according to the actual demand, the vibration stress in the vehicle operation is buffered, the PIN pin is prevented from hard contact with the PCB board, the Pogo structure is released by the spring when stress is received, and the sensor core device is prevented from being affected by the vibration stress. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure diagram of the shockproof temperature sensor is provided for the utility model Figure 1 ;

[0017] Figure 2 A structure diagram of the shockproof temperature sensor is provided for the utility model Figure 2 ;

[0018] Figure 3 A sectional view of the shockproof temperature sensor is provided for the utility model.

[0019] Figure 4 A structure diagram of the fixing seat of the shockproof temperature sensor is provided for the utility model.

[0020] In the figure: 1, thermistor; 2, spring pin; 3, fixing seat; 4, protective shell; 5, sealing gasket; 6, epoxy resin; 7, shell; 8, mounting cylinder. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] With reference to Figures 1-4 A shockproof temperature sensor, comprising a shell 7, further comprising: a pogo pin 2, also known as a Pogo pin, is a spring type probe formed by three basic components of needle shaft, spring and needle tube through precise instrument riveting pre-pressing, which has a precise spring structure inside, mainly used for current and signal transmission, a fixing seat 3 is arranged in the shell 7, the shell of the pogo pin 2 is fixedly arranged in the fixing seat 3, the material of the fixing seat 3 is plastic, the pogo pin 2 can be fixed in the fixing seat 3 by injection molding, that is, before injection molding, the pogo pin 2 is placed in the mold, then liquid plastic is injected into the mold, and after cooling and forming, the combination of the fixing seat 3 and the pogo pin 2 can be obtained, the production mode is simple, reliable and has good insulation effect; The thermistor 1 is preferably a high-precision one-way glass-sealed thermistor 1, the pins of the thermistor 1 and the pogo pin 2 are welded and connected, that is, the electrical connection is realized by soldering, and the pins of the thermistor 1 and the pogo pin 2 are fixedly connected by epoxy resin 6, in use, the pins of the thermistor 1 and the pogo pin 2 are connected by soldering, and the thermistor 1 and the soldered end are packaged with epoxy resin 6, which has waterproof and dustproof effect.

[0025] In use, the PIN pin of the temperature sensor adopts the structure of the pogo pin 2, has elastic expansion effect, can buffer the vibration stress influence in the running of the vehicle, reduces the damage of the PIN pin in the collision process, and the PIN pin on the pogo pin 2 can be selected according to actual needs, the structure space utilization is relatively high, the appearance is relatively good, the insulation withstand voltage capacity is strong, and the protection performance is high, which is helpful to popularize and use.

[0026] With reference to Figures 1-3The shockproof temperature sensor further comprises a protective shell 4, a mounting groove is formed in one end of the shell 7, the outer wall of the protective shell 4 is connected in the mounting groove in an interference fit, the fixed seat 3 is slidably arranged in a limiting groove formed in the protective shell 4, the other end surface of the fixed seat 3 abuts against the inner bottom of the mounting groove, the end of the protective shell 4 extending into the mounting groove abuts against the end surface of the fixed seat 3, the fixed seat 3 and the spring needle 2 are fixed in the shell 7, and the PIN needle of the spring needle 2 extends out of the protective shell 4, so that the spring needle 2 is conveniently connected with other mating ends, and the use effect is improved.

[0027] With reference to Figure 3 The sealing gasket 5 is sleeved on the fixed seat 3, and the end, away from the fixed seat 3, of the sealing gasket 5 abuts against the protective shell 4, so that the sealing effect between the protective shell 4 and the fixed seat 3 is improved, and the waterproof and dustproof effects are improved.

[0028] With reference to Figures 1-4 The guiding block is fixedly arranged on the outer wall of the protective shell 4, and a guiding groove is formed in the end surface of the mounting groove, the guiding block is slidably arranged in the guiding groove, the position of the protective shell 4 is fixedly and reliably ensured by arranging the guiding block on the outer wall of the protective shell 4 and forming the guiding groove in the shell 7, and the protective shell 4 cannot rotate in the shell 7, so that the normal use is ensured. In addition, the first guiding surface parallel to the axis is fixedly arranged on the end of the fixed seat 3, close to the thermistor 1, the second guiding surface corresponding to the first guiding surface is fixedly arranged in the mounting groove, and the first guiding surface and the second guiding surface are slidably connected, so that the connection between the fixed seat 3 and the shell 7 is stable and reliable, the fixed seat 3 cannot rotate, and the use effect is improved.

[0029] With reference to Figures 1-3 The threaded rod is fixedly arranged on the other end of the shell 7, the mounting cylinder 8 is threadedly connected to the threaded rod, and the sealing ring is arranged in the mouth of the mounting cylinder 8 and abuts against the end surface of the other end of the shell 7, so that the sealing effect of the connection between the shell 7 and the mounting cylinder 8 is improved, and the waterproof and dustproof functions are achieved.

[0030] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of these should be covered in the protection scope of the present application.

Claims

1. A shockproof temperature sensor comprising a housing (7), characterized in that, Also include: The spring needle (2) is provided with a fixed seat (3) in the shell (7), and the shell of the spring needle (2) is fixedly arranged in the fixed seat (3); The pin of the thermistor (1) is welded with the pin of the spring needle (2); The pin of the thermistor (1) and the spring needle (2) is fixedly connected through epoxy resin (6).

2. A shock-mounted temperature sensor according to claim 1, wherein, It also includes a protective shell (4), one end of the shell (7) is provided with a mounting groove, the outer wall of the protective shell (4) is connected in the mounting groove, the protective shell (4) is provided with a limiting groove, one end of the fixed seat (3) is slidably arranged in the limiting groove, and the other end surface of the fixed seat (3) abuts against the bottom of the mounting groove, and the end of the protective shell (4) extending into the mounting groove abuts against the end surface of the fixed seat (3).

3. A shock-proof temperature sensor according to claim 2, characterized in that The fixed seat (3) is provided with a sealing gasket (5), and the end of the sealing gasket (5) away from the fixed seat (3) abuts against the protective shell (4).

4. A shock-mounted temperature sensor according to claim 3, wherein, The outer wall of the protective shell (4) is fixedly provided with a guide block, and the end surface of the mounting groove is provided with a guide groove, and the guide block is slidably arranged in the guide groove.

5. The shock mounted temperature sensor of claim 1 wherein, The other end of the shell (7) is fixedly provided with a threaded rod, the threaded rod is threadedly connected with a mounting cylinder (8), and the mounting cylinder (8) is provided with a sealing ring in the mouth portion, and the sealing ring abuts against the other end of the shell (7).

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