CN218973652U

CN218973652U - Temperature sensor's test fixture

Info

Publication number: CN218973652U
Application number: CN202223046929.7U
Authority: CN
Inventors: 高锋; 张国江; 徐尚伟
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-05-05
Anticipated expiration: 2032-11-16

Abstract

The utility model belongs to the technical field of temperature sensors, and particularly discloses a temperature sensor testing tool which comprises a tool main body and a detection assembly, wherein a positioning mechanism on the tool main body clamps the detection assembly on the tool main body, the detection assembly comprises a to-be-measured temperature part, a colloid fixing part and an upper cover, the colloid fixing part is arranged between the to-be-measured temperature part and the upper cover, a colloid is arranged in a colloid storage position of the colloid fixing part, a first temperature sensor is arranged on one side of the to-be-measured temperature part, which is contacted with the colloid, and a second temperature sensor is arranged on one side of the upper cover, which is contacted with the colloid. The response conditions of the first temperature sensor and the second temperature sensor arranged on two sides of the colloid are compared, and after the colloid with certain thickness is isolated, the influence on the response performance of the temperature sensor is obtained, so that the influence of the thickness of the colloid on the response condition of the temperature sensor is quantified, the temperature measuring result of the temperature sensor is conveniently corrected, and the temperature measuring precision is improved.

Description

Temperature sensor's test fixture

Technical Field

The utility model relates to the technical field of temperature sensors, in particular to a testing tool of a temperature sensor.

Background

Generally, the temperature sensor is usually fixed on the to-be-measured member by means of glue dispensing, and since the glue is sandwiched between the temperature sensor and the to-be-measured member, when determining the actual temperature of the to-be-measured member, the heat conductivity coefficient of the glue needs to be introduced to correct the measured temperature of the temperature sensor, the heat conductivity coefficient of the glue changes due to the glue material, the glue thickness and the environmental pressure of the glue, and the heat conductivity coefficients of the glue have certain differences.

When the temperature is actually measured, the influence of the colloid thickness on the heat conductivity coefficient is small for the temperature piece to be measured with slower temperature rising rate, the measured temperature of the temperature sensor is close to the actual temperature of the temperature piece to be measured after being corrected by the heat conductivity coefficient, the temperature measurement is accurate, but under the condition that the temperature sensor needs to quickly respond to the temperature piece to be measured with faster temperature rising rate, the actual temperature of the temperature piece to be measured can not be accurately obtained only through the correction of the heat conductivity coefficient, the measurement result is inaccurate, and the temperature measurement precision is poor.

Therefore, a testing tool for a temperature sensor is needed to quantify the effect of the gel thickness on the measured temperature of the temperature sensor.

Disclosure of Invention

The utility model aims to provide a testing tool for a temperature sensor, which can test the influence of colloids with different thicknesses on the response condition of the temperature sensor, and is convenient to correct the temperature measurement result of the temperature sensor, so that the temperature measurement precision is improved.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, the present utility model provides a temperature sensor testing tool, including:

the tool comprises a tool main body, wherein a positioning mechanism is arranged on the tool main body;

the detection assembly is arranged on the tool main body and is fixed through the positioning mechanism, the detection assembly comprises a temperature measuring piece, a colloid fixing piece and an upper cover which are sequentially arranged, the temperature of the temperature measuring piece is adjustable, a glue storage position is arranged on the colloid fixing piece, colloids with different thicknesses are arranged in the glue storage position, a first temperature sensor is arranged on one side, in contact with the colloid, of the temperature measuring piece, and a second temperature sensor is arranged on one side, in contact with the colloid, of the upper cover.

Optionally, the temperature part to be measured is an overcurrent copper bar, the overcurrent copper bar is in conductive communication with the circuit, and the current passing through the overcurrent copper bar can be adjusted.

Optionally, one side of overcurrent copper bar with the colloid contact is equipped with first mounting groove, be equipped with in the first mounting groove first temperature sensor, the upper cover with one side of colloid contact is equipped with the second mounting groove, be equipped with in the second mounting groove second temperature sensor.

Optionally, the colloid mounting includes the thickness intermediate layer of a plurality of different thickness, store up the gluey position for link up the through-hole of thickness intermediate layer, store up in the gluey position the up end of colloid with the up end parallel and level of thickness intermediate layer, store up in the gluey position the lower terminal surface of colloid with the lower terminal surface parallel and level of thickness intermediate layer.

Optionally, each thickness interlayer is provided with a plurality of glue storage positions, and the glue storage positions are uniformly distributed on the thickness interlayer.

Optionally, the first mounting groove the first temperature sensor all is provided with a plurality ofly, every be equipped with in the first mounting groove one first temperature sensor, first mounting groove with first temperature sensor's quantity with store up the quantity of glue position the same.

Optionally, the second mounting groove and the second temperature sensor are all provided with a plurality of, every second mounting groove is equipped with one second temperature sensor in the second mounting groove, the second mounting groove with the quantity of second temperature sensor with store up the quantity of glue position the same.

Optionally, the first temperature sensor is fixed in the first mounting groove through a first heat-conducting adhesive; and/or

The second temperature sensor is fixed in the second mounting groove through second heat-conducting glue.

Optionally, the frock main part includes the bottom plate and sets up the mounting panel of bottom plate both sides, positioning mechanism sets up on the bottom plate, positioning mechanism can with the detection component supports tightly on the medial surface of mounting panel.

Optionally, the positioning mechanism includes hydraulic stem and push pedal, the cylinder body of hydraulic stem is fixed on the bottom plate, the piston rod of hydraulic stem is telescopically set up in the cylinder body, the removal end of piston rod with the push pedal is connected, the piston rod can drive the push pedal reciprocating motion.

Optionally, a guide groove is formed in the inner side end face of the mounting plate, a boss is arranged on one side, abutting against the mounting plate, of the upper cover, and the boss is arranged in the guide groove.

The beneficial effects of the utility model are as follows:

the utility model provides a temperature sensor testing tool which comprises a tool main body and a detection assembly, wherein a positioning mechanism on the tool main body clamps the detection assembly on the tool main body, the detection assembly comprises a to-be-measured part, a colloid fixing part and an upper cover which are sequentially arranged, the temperature of the to-be-measured part is adjustable, the colloid fixing part is arranged between the to-be-measured part and the upper cover, a colloid is arranged in a colloid storage position of the colloid fixing part, a first temperature sensor is arranged on one side of the to-be-measured part, which is contacted with the colloid, and a second temperature sensor is arranged on one side of the upper cover, which is contacted with the colloid, and the first temperature sensor and the second temperature sensor adopt the same type of temperature sensor. The response conditions of the first temperature sensor and the second temperature sensor arranged on two sides of the colloid are compared, and after the colloid with certain thickness is isolated, the influence on the response performance of the temperature sensor is obtained, so that the influence of the thickness of the colloid on the response condition of the temperature sensor is quantified, the temperature measuring result of the temperature sensor is conveniently corrected, and the temperature measuring precision is improved.

Drawings

FIG. 1 is an exploded view of a temperature sensor test fixture provided in an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial enlarged view at B in FIG. 1;

FIG. 4 is a front view of a test fixture for a temperature sensor provided in an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an overcurrent copper bar provided in an embodiment of the utility model;

FIG. 6 is a schematic view of the structure of an upper cover provided in an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of a thickness interlayer provided in an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a tooling main body provided in an embodiment of the present utility model.

In the figure:

100. a tool main body; 110. a bottom plate; 111. a limiting table; 120. a mounting plate; 121. a guide groove; 200. overcurrent copper bars; 210. a first mounting groove; 220. a first joint; 230. a second joint; 300. a thickness interlayer; 310. a glue storage position; 400. an upper cover; 410. a second mounting groove; 420. a boss; 510. a cylinder; 520. a piston rod; 530. a push plate.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-4, this embodiment provides a temperature sensor's test fixture, this temperature sensor's test fixture includes frock main part 100 and detection component, be equipped with positioning mechanism on the frock main part 100, positioning mechanism can press from both sides detection component tight on frock main part 100, detection component is including waiting the temperature measurement spare that sets gradually, colloid mounting and upper cover 400, wherein wait the temperature of temperature measurement spare adjustable, colloid mounting sets up between waiting the temperature measurement spare and upper cover 400, be equipped with on the colloid mounting and store up gluey position 310, be equipped with the colloid of different thickness in the storage gluey position 310, be equipped with first temperature sensor in the side that awaits measuring the temperature spare and colloid contact, one side that upper cover 400 and colloid contact is equipped with second temperature sensor, first temperature sensor and second temperature sensor adopt same type temperature sensor. The first temperature of the part to be measured is obtained through direct measurement of the first temperature sensor, the second temperature of the part to be measured is obtained through colloid with a certain thickness measured by the second temperature sensor, after colloid with a certain thickness is isolated through comparison of the first temperature and the second temperature, the influence on the response performance of the temperature sensor can be obtained, and the linear curve of the response performance of the temperature sensor by the colloid with different thickness can be obtained through replacement of the colloid with different thickness, so that the influence of the colloid thickness on the measured temperature of the temperature sensor is quantified, the temperature measuring result of the temperature sensor is conveniently corrected, and the temperature measuring precision is improved.

Of course, in some embodiments, a uniform thickness of the gel may be used, and the effect of the different types of gels on the response time of the temperature sensor may be laterally compared, which is not limited in this embodiment.

As an alternative, referring to fig. 5, the piece to be measured in this embodiment is an over-current copper bar 200, the over-current copper bar 200 includes a first connector 220 and a second connector 230, the first connector 220 and the second connector 230 are respectively in conductive communication with a circuit, and by adjusting the current passing through the over-current copper bar 200, the temperature rise rate of the over-current copper bar 200 can be adjusted, so that the influence on the response condition of the temperature sensor under different temperature rise rates is obtained.

Further, in order to avoid the first temperature sensor being damaged due to extrusion caused by the contact between the to-be-measured member and the colloid fixing member, the first mounting groove 210 is provided on the side of the overcurrent copper bar 200 contacting the colloid in this embodiment, and the first temperature sensor is disposed in the first mounting groove 210. Illustratively, the first temperature sensor may be secured within the first mounting groove 210 by a first thermally conductive adhesive, thereby avoiding movement of the first temperature sensor during testing, which may affect the test results.

Referring to fig. 6, a second mounting groove 410 is formed on a side of the upper cover 400, which contacts with the glue, a second temperature sensor is disposed in the second mounting groove 410, the first mounting groove 210 and the second mounting groove 410 are both disposed towards the glue fixing member, and the first mounting groove 210 and the second mounting groove 410 are both disposed corresponding to the glue storage position 310. The second temperature sensor can be fixed in the second mounting groove 410 through the second heat-conducting glue, so that the second temperature sensor is firmly fixed in the second mounting groove 410, and the second temperature sensor is prevented from displacement in the testing process, and the testing result is prevented from being influenced.

Referring to fig. 7, the glue fixing member in this embodiment includes a plurality of thickness interlayers 300 with different thicknesses, the glue storage position 310 is a through hole penetrating through the thickness interlayer 300, when in use, the glue storage position 310 is filled with liquid glue, and the upper end surface of the liquid glue is level with the upper end surface of the thickness interlayer 300, after the liquid glue is solidified, the upper and lower end surfaces of the glue in the glue storage position 310 are level with the upper and lower end surfaces of the thickness interlayer 300, so as to obtain glue with different thicknesses, and at the moment, the thickness of the glue is the same as the thickness of the thickness interlayer 300. When the test is performed, if the influence of the colloids with different thicknesses on the response condition of the temperature sensor is required to be tested, the original thickness interlayer 300 can be removed, and the thickness interlayer 300 with the required thickness can be replaced. Illustratively, the thickness interlayer 300 may be made of an insulating material with a high thermal conductivity. The upper cover 400 is made of a material having a low thermal conductivity.

More preferably, in order to make the obtained experimental data more reliable, a plurality of glue storage locations 310 are disposed on each thickness interlayer 300, and the plurality of glue storage locations 310 are uniformly distributed on the thickness interlayer 300. Meanwhile, a plurality of first mounting grooves 210 and first temperature sensors are correspondingly arranged, each first mounting groove 210 is internally provided with a first temperature sensor, and the number of the first mounting grooves 210 and the first temperature sensors is the same as that of the glue storage positions 310. The second mounting grooves 410 and the second temperature sensors are also provided in plurality, and one second temperature sensor is provided in each second mounting groove 410, and the number of the second mounting grooves 410 and the second temperature sensors is the same as the number of the glue storage positions 310. Therefore, the average value of multiple groups of data can be obtained at one time, and experimental errors are reduced.

Referring to fig. 4 and 8, the tool body 100 in this embodiment includes a base plate 110 and mounting plates 120 disposed on two sides of the base plate 110, and a positioning mechanism is disposed on the base plate 110, and the detection assembly can be abutted against the inner side surface of the mounting plates 120 by the positioning mechanism, so that the first temperature sensor and the second temperature sensor can be measured conveniently. Specifically, the positioning mechanism includes a hydraulic rod and a push plate 530, the cylinder 510 of the hydraulic rod is fixed on the bottom plate 110, the piston rod 520 of the hydraulic rod is telescopically arranged in the cylinder 510, the moving end of the piston rod 520 is connected with the push plate 530, the piston rod 520 can drive the push plate 530 to reciprocate, and when the push plate 530 moves to clamp the detection assembly, the movement can be stopped. Through the telescopic piston rod 520, the tool main body 100 can adjust the distance between the push plate 530 and the inner side surface of the mounting plate 120, so as to adapt to the thickness interlayers 300 with different thicknesses.

Of course, in order to avoid collision between the push plate 530 and the cylinder body 510 of the hydraulic cylinder, in this embodiment, the inner side of the bottom plate 110 is provided with a limiting table 111, and one end point of the reciprocating movement of the push plate 530 can be limited by the limiting table 111.

Further, in order to facilitate positioning of the detection assembly, in this embodiment, a guiding groove 121 is formed on an inner end surface of each mounting plate 120, correspondingly, two strip-shaped bosses 420 are formed on one side of the upper cover 400 abutting against the mounting plate 120, the bosses 420 are arranged along a first direction (a first direction is a Y-axis direction in fig. 1), the bosses 420 are clamped in the guiding grooves 121, and displacement of the upper cover 400 along a second direction (a second direction is an X-axis direction in fig. 1) can be limited by the bosses 420, so that the fixing effect is good.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Temperature sensor's test fixture, its characterized in that includes:

the tool comprises a tool main body (100), wherein a positioning mechanism is arranged on the tool main body (100);

the detection assembly is arranged on the tool main body (100) and is fixed through a positioning mechanism, the detection assembly comprises a temperature measuring piece, a colloid fixing piece and an upper cover (400) which are sequentially arranged, the temperature of the temperature measuring piece is adjustable, a glue storage position (310) is arranged on the colloid fixing piece, colloids with different thicknesses are arranged in the glue storage position (310), a first temperature sensor is arranged on one side of the temperature measuring piece, which is in contact with the colloids, and a second temperature sensor is arranged on one side of the upper cover (400), which is in contact with the colloids.

2. The temperature sensor testing tool according to claim 1, wherein the temperature piece to be tested is an overcurrent copper bar (200), the overcurrent copper bar (200) is in conductive communication with a circuit, and the current passing through the overcurrent copper bar (200) can be adjusted.

3. The temperature sensor testing tool according to claim 2, wherein a first mounting groove (210) is formed in a side, in contact with the colloid, of the overcurrent copper bar (200), the first temperature sensor is arranged in the first mounting groove (210), a second mounting groove (410) is formed in a side, in contact with the colloid, of the upper cover (400), and the second temperature sensor is arranged in the second mounting groove (410).

4. A temperature sensor testing fixture according to claim 3, wherein the glue fixing member comprises a plurality of thickness interlayers (300) with different thicknesses, the glue storage position (310) is a through hole penetrating through the thickness interlayers (300), the upper end face of the glue in the glue storage position (310) is level with the upper end face of the thickness interlayers (300), and the lower end face of the glue in the glue storage position (310) is level with the lower end face of the thickness interlayers (300).

5. The temperature sensor testing tool according to claim 4, wherein a plurality of glue storage positions (310) are arranged on each thickness interlayer (300), and the glue storage positions (310) are uniformly distributed on the thickness interlayers (300).

6. The temperature sensor testing tool according to claim 5, wherein a plurality of first mounting grooves (210) and a plurality of first temperature sensors are provided, one first temperature sensor is provided in each first mounting groove (210), and the number of the first mounting grooves (210) and the number of the first temperature sensors are the same as the number of the glue storage positions (310).

7. The temperature sensor testing tool according to claim 5, wherein a plurality of second mounting grooves (410) and a plurality of second temperature sensors are provided, one second temperature sensor is provided in each second mounting groove (410), and the number of the second mounting grooves (410) and the number of the second temperature sensors are the same as the number of the glue storage positions (310).

8. A temperature sensor testing fixture according to claim 3, wherein the first temperature sensor is fixed in the first mounting groove (210) by a first heat conducting glue; and/or

The second temperature sensor is fixed in the second mounting groove (410) through second heat-conducting glue.

9. The temperature sensor testing tool according to any one of claims 1-8, wherein the tool body (100) comprises a bottom plate (110) and mounting plates (120) arranged on both sides of the bottom plate (110), the positioning mechanism is arranged on the bottom plate (110), and the positioning mechanism can press the detection assembly against the inner side surface of the mounting plates (120).

10. The temperature sensor testing tool according to claim 9, wherein the positioning mechanism comprises a hydraulic rod and a push plate (530), a cylinder body (510) of the hydraulic rod is fixed on the bottom plate (110), a piston rod (520) of the hydraulic rod is telescopically arranged in the cylinder body (510), a moving end of the piston rod (520) is connected with the push plate (530), and the piston rod (520) can drive the push plate (530) to reciprocate.

11. The temperature sensor testing tool according to claim 9, wherein a guide groove (121) is formed in an inner side end surface of the mounting plate (120), a boss (420) is formed on one side, abutting against the mounting plate (120), of the upper cover (400), and the boss (420) is arranged in the guide groove (121).