阅读说明：本技术 一种温差监测装置 (Temperature difference monitoring device ) 是由 陈伟 郝义国 刘超 于 2019-08-21 设计创作，主要内容包括：本发明公开了一种温差监测装置。本发明的一种温差监测装置,温差监测装置包括至少一组温度采集系统、信号处理器和显示器；温度采集系统用于检测燃料电池端板不同位置的温度,信号处理器分别与温度采集系统和显示器电连接,信号处理器用于将温度采集系统采集到的温度信号转换为数字信号,并发送给显示器。本发明的一种温差监测装置,应用在燃料电池端板温度测量位置,具有价格低廉,测温方便,便于组合集成等优点,可以方便批量应用于燃料电池的温差测量。(The invention discloses a temperature difference monitoring device. The invention discloses a temperature difference monitoring device, which comprises at least one group of temperature acquisition systems, a signal processor and a display; the temperature acquisition system is used for detecting the temperature of different positions of the fuel cell end plate, the signal processor is respectively electrically connected with the temperature acquisition system and the display, and the signal processor is used for converting the temperature signals acquired by the temperature acquisition system into digital signals and sending the digital signals to the display. The temperature difference monitoring device is applied to the temperature measurement position of the end plate of the fuel cell, has the advantages of low price, convenience in temperature measurement, convenience in combination and integration and the like, and can be conveniently applied to the temperature difference measurement of the fuel cell in batches.)

1. The utility model provides a temperature difference monitoring devices which characterized in that: the temperature difference monitoring device (1) comprises at least one group of temperature acquisition system (4), a signal processor (2) and a display (3); temperature acquisition system (4) are used for detecting the temperature of fuel cell end plate (6) different positions, signal processor (2) respectively with temperature acquisition system (4) and display (3) electricity are connected, signal processor (2) are used for with the temperature signal conversion that temperature acquisition system (4) gathered is digital signal to give display (3).

2. The temperature difference monitoring device according to claim 1, wherein: the display (3) comprises a data receiving unit (31), a data transformation unit (32) and a display unit (33); the display unit (33) is respectively electrically connected with the data receiving unit (31) and the data conversion unit (32), and the data receiving unit (31) is electrically connected with the signal processor (2) and used for receiving the digital signals sent by the signal processor (2) and sending the digital signals to the display unit (33) for displaying numerical values; the data conversion unit (32) is electrically connected with the data receiving unit (31) and is used for converting the digital signals into color electric signals and sending the color electric signals to the display unit (33) to display colors.

3. A temperature difference monitoring device according to claim 1 or 2, wherein: the temperature acquisition system (4) comprises a plurality of temperature detectors (5) for simultaneously detecting the temperatures of different positions of the fuel cell end plate (6).

4. A temperature difference monitoring device according to claim 3, wherein: the plurality of temperature detectors (5) each comprise a heat conducting member (51), a thermal resistor (52) and a lead (53), the thermal resistor (52) is arranged on the heat conducting member (51), one end of the lead (53) is electrically connected with the thermal resistor (52), and the other end of the lead is electrically connected with the signal processor (2).

5. The temperature difference monitoring device according to claim 4, wherein: the plurality of temperature detectors (5) further comprise a shell (54) and an elastic part (55), a through hole (541) is formed in one end of the shell (54), the heat conducting part (51) is arranged in the shell (54), one end of the heat conducting part extends out of the shell (54) through the through hole (541), the elastic part (55) is arranged between the other end of the heat conducting part (51) and the other end of the shell (54), one end of the elastic part (55) abuts against the heat conducting part (51), the other end of the elastic part abuts against the other end of the shell (54), and the other end of the lead (53) penetrates through the other end of the shell (54) and is electrically connected with the signal processor (2).

6. The temperature difference monitoring device according to claim 5, wherein: the other end of the shell (54) is fixedly connected with one side of the shell of the signal processor (2), and the shell of the display (3) is fixedly connected with the other side of the shell of the signal processor (2).

7. The temperature difference monitoring device according to claim 6, wherein: the temperature acquisition system (4) further comprises a supporting plate (7) fixedly connected with one side of the shell of the signal processor (2), a plurality of supporting holes (71) penetrating through the supporting plate are formed in the supporting plate (7), the supporting holes (71) are in one-to-one correspondence with the temperature detectors (5), and one ends of the shells (54) of the temperature detectors (5) penetrate through the corresponding supporting holes (71).

8. The temperature difference monitoring device according to claim 7, wherein: the temperature difference monitoring device (1) further comprises at least one protective cover (8), and the number of the protective covers (8) corresponds to the number of the temperature acquisition system (4), the signal processor (2) and the display (3) in a one-to-one mode; the both ends of safety cover (8) are all uncovered, just fixed connection is established by arbitrary uncovered cover in safety cover (8) and is in the same place backup pad (7), signal processor's shell and the shell of display (3), are close to the uncovered department of the one end of display (3) is equipped with transparent visor (81).

9. The temperature difference monitoring device according to claim 8, wherein: the temperature difference monitoring device (1) further comprises at least one fixing member (9), wherein the fixing member (9) fixes the support plate (7) on the fuel cell end plate (6) so that the heat conducting member (51) is in contact with the surface of the fuel cell end plate (6).

10. The temperature difference monitoring device according to claim 8, wherein: the fuel cell end plate (6) is divided into a plurality of detection areas (61), and each detection area (61) corresponds to a group of temperature acquisition systems (4), a signal processor (2), a display (3) and a protective cover (8).

Technical Field

The invention relates to the technical field of fuel cells, in particular to a temperature difference monitoring device.

Background

Fuel cell systems utilize hydrogen and oxygen to generate electrical energy while releasing thermal energy. The thermal energy adversely affects the rate of the electrochemical reaction to some extent. An important link in the fuel cell heat management is to detect the heat distribution of the fuel cell flow field, and the temperature not only directly affects the performance and output power of the fuel cell, but also indirectly affects the water distribution, thereby indirectly affecting the service life of the fuel cell and causing abnormal phenomena such as flooding and the like.

The temperature distribution of the fuel cell flow field is generally measured by an infrared imager or by a thermocouple at a single point. The hand-held type infrared imager utilizes the principle of infrared temperature measurement, and during the operation, the temperature measurement is taken a picture to the position that needs the measurement. Generally, the price is high, and the measurement is easy to move when being held by hands, so that the measurement is not convenient enough. Thermocouple single-point measurement is through digging hole or contact temperature measurement on fuel cell end plate, and the price is cheap, but is inconvenient, and temperature data is not enough directly perceived, and the measuring position also needs to remove at any time.

Disclosure of Invention

The invention aims to provide a temperature difference monitoring device which is convenient to measure temperature and combine and integrate, aiming at the defects in the prior art.

The invention discloses a temperature difference monitoring device, which comprises at least one group of temperature acquisition systems, a signal processor and a display; the temperature acquisition system is used for detecting the temperature of different positions of the fuel cell end plate, the signal processor is respectively electrically connected with the temperature acquisition system and the display, and the signal processor is used for converting the temperature signals acquired by the temperature acquisition system into digital signals and sending the digital signals to the display.

Preferably, the display comprises a data receiving unit, a data transformation unit and a display unit; the display unit is respectively and electrically connected with the data receiving unit and the data conversion unit, and the data receiving unit is electrically connected with the signal processor and used for receiving the digital signals sent by the signal processor and sending the digital signals to the display unit to display numerical values; the data conversion unit is electrically connected with the data receiving unit and used for converting the digital signals into color electric signals and sending the color electric signals to the display unit to display colors.

Preferably, the temperature acquisition system comprises a plurality of temperature detectors for simultaneously detecting the temperature of different positions of the fuel cell end plate.

Preferably, each of the plurality of temperature detectors includes a heat conducting member, a thermal resistor, and a wire, the thermal resistor is disposed on the heat conducting member, one end of the wire is electrically connected to the thermal resistor, and the other end of the wire is electrically connected to the signal processor.

Preferably, the plurality of temperature detectors each further include a housing and an elastic member, one end of the housing is provided with a through hole, the heat conducting member is disposed in the housing, one end of the heat conducting member extends out of the housing through the through hole, the elastic member is disposed between the other end of the heat conducting member and the other end of the housing, one end of the elastic member abuts against the heat conducting member, the other end of the elastic member abuts against the other end of the housing, and the other end of the wire penetrates through the other end of the housing and is electrically connected to the signal processor.

Preferably, the other end of the casing is fixedly connected with one side of a shell of the signal processor, and the shell of the display is fixedly connected with the other side of the shell of the signal processor.

Preferably, the temperature acquisition system further comprises a support plate fixedly connected to one side of the housing of the signal processor, the support plate is provided with a plurality of support holes penetrating through the support plate, the plurality of support holes correspond to the plurality of temperature detectors one to one, and one ends of the shells of the plurality of temperature detectors penetrate through the support holes corresponding to the plurality of temperature detectors.

Preferably, the temperature difference monitoring device further comprises at least one protective cover, and the number of the protective covers corresponds to the number of the temperature acquisition system, the signal processor and the display one to one; the both ends of safety cover are all uncovered, just fixed connection is established by arbitrary uncovered cover to the safety cover and is in the same place backup pad, signal processor's shell and the shell of display are close to the uncovered department of the one end of display is equipped with transparent visor.

Preferably, the temperature difference monitoring device further includes at least one fixing member that fixes the support plate to the fuel cell end plate such that the heat-conducting member is in contact with a surface of the fuel cell end plate.

Preferably, the fixing part comprises a rubber suction cup, and the rubber suction cup is fixedly arranged on the supporting plate.

Preferably, the fuel cell end plate is divided into a plurality of detection areas, and each detection area corresponds to a group of temperature acquisition systems, a signal processor, a display and a protective cover.

The temperature difference monitoring device is applied to the temperature measurement position of the end plate of the fuel cell, has the advantages of low price, convenience in temperature measurement, convenience in combination and integration and the like, and can be conveniently applied to the temperature difference measurement of the fuel cell in batches.

Drawings

FIG. 1 is a schematic structural diagram of a temperature difference monitoring device according to the present invention;

FIG. 2 is a schematic structural diagram of a display of a temperature difference monitoring device according to the present invention;

FIG. 3 is a schematic structural diagram of a temperature detector of the temperature difference monitoring device according to the present invention;

fig. 4 is a schematic structural diagram of a temperature difference monitoring device and a fuel cell according to the present invention.

1. A temperature difference monitoring device; 2. a signal processor; 3. a display; 31. a data receiving unit; 32. a data conversion unit; 33. a display unit; 4. a temperature acquisition system; 5. a temperature detector; 51. a heat conductive member; 52. a thermal resistor; 53. a wire; 54. a housing; 541. a through hole; 542. a cover body; 55. an elastic member; 6. a fuel cell end plate; 61. detecting a region; 7. a support plate; 71. a support hole; 8. a protective cover; 81. a transparent protective cover; 9. a fixing member; 91. a rubber sucker.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, a temperature difference monitoring device 1 of the present invention comprises at least one set of temperature acquisition system 4, a signal processor 2 and a display 3; the temperature acquisition system 4 is used for detecting the temperature of the different positions of the fuel cell end plate 6, the signal processor 2 is respectively electrically connected with the temperature acquisition system 4 and the display 3, and the signal processor 2 is used for converting the temperature signals acquired by the temperature acquisition system 4 into digital signals and sending the digital signals to the display 3.

The temperature difference monitoring device is applied to the temperature measurement position of the fuel cell end plate 6, has the advantages of low price, convenience in temperature measurement, convenience in combination and integration and the like, and can be conveniently applied to the temperature difference measurement of fuel cells in batches.

As shown in fig. 2, the display 3 has various structures, which are not limited herein, and in this embodiment, the display 3 may include a data receiving unit 31, a data transforming unit 32, and a display unit 33; the display unit 33 is respectively electrically connected with the data receiving unit 31 and the data conversion unit 32, the data receiving unit 31 is electrically connected with the signal processor 2 for receiving the digital signal sent by the signal processor 2 and sending the digital signal to the display unit 33 for displaying a numerical value; the data conversion unit 32 is electrically connected to the data receiving unit 31, and is configured to convert the digital signal into a color electrical signal, and send the color electrical signal to the display unit 33 to display a color. Thus, the operator can clearly know the temperature of the fuel cell end plate 6 directly from the numerical value and color displayed on the display 3.

The temperature acquisition system 4 may include a plurality of temperature detectors 5 that simultaneously detect the temperature of different positions of the fuel cell end plate 6.

As shown in fig. 3, the temperature detectors 5 have various structures, which are not limited herein, in this embodiment, the plurality of temperature detectors 5 may each include a heat conducting member 51, a thermal resistor 52 and a conducting wire 53, the thermal resistor 52 is disposed on the heat conducting member 51, one end of the conducting wire 53 is electrically connected to the thermal resistor 52, and the other end is electrically connected to the signal processor 2. The heat-conducting member 51 is in contact with the surface of the fuel cell end plate 6, and the heat resistor 52 detects the temperature on the heat-conducting member 51 and transmits it to the signal processor 2.

For convenience, in this embodiment, each of the plurality of temperature detectors 5 may further include a housing 54 and an elastic member 55, one end of the housing 54 is provided with a through hole 541, the heat conducting member 51 is disposed in the housing 54, and one end of the heat conducting member 51 extends out of the housing 54 through the through hole 541, the elastic member 55 is disposed between the other end of the heat conducting member 51 and the other end of the housing 54, one end of the elastic member 55 abuts against the heat conducting member 51, the other end abuts against the other end of the housing 54, and the other end of the wire 53 penetrates through the other end of the housing 54 and is electrically connected to the signal processor 2. When the heat conduction member 51 is in contact with the fuel cell end plate 6, the elastic member 55 is pressed, and under the action of the elastic force, the external force is not removed, so that the heat conduction member 51 is in close contact with the surface of the detected object through the elastic member 55, and the detection precision is improved.

The shape of the through hole 541 is various, and is not limited herein, in this embodiment, the through hole 541 may be a circular hole, the heat conducting member 51 may be cylindrical, a diameter of one end of the heat conducting member 51 is slightly smaller than a diameter of the through hole 541, and a diameter of the other end of the heat conducting member 51 is larger than the diameter of the through hole 541. This makes it possible to dispose the heat-conducting member 51 in the housing 54 while restricting the movable range of the heat-conducting member 51 in the axial direction thereof.

The heat conducting member 51 may be made of various materials, but is not limited thereto, and may be an iron cylinder, for example.

The other end of the housing 54 may be open, the opening may be provided with a cover 542 for opening and closing the opening, and the cover 542 may be provided with a through hole through which the lead 53 passes.

The shape of the housing 54 can be varied and is not limited herein, for example: the housing 54 may be cylindrical, the cover 542 may be circular, the outer diameter of the cover 542 may be the same as the outer diameter of the housing 54, and a cylindrical protrusion may be provided on the inner side of the cover 542, the diameter of the protrusion being the same as the inner diameter of the housing 54.

The material of the housing 54 may be a heat insulating material, so that heat dissipation on the heat conducting member 51 can be avoided to the maximum extent, for example: can be plastic, ceramic, etc.

The elastic member 55 has various structures, in this embodiment, a spring, which may be a plastic spring, so as to prevent the spring from dispersing heat on the heat-conducting member 51, thereby making the detection data inaccurate.

Further, the other end of the housing 54 may be fixedly connected to one side of the housing of the signal processor 2, that is, the cover 542 may be fixedly connected to one side of the housing of the signal processor 2, and the housing of the display 3 is fixedly connected to the other side of the housing of the signal processor 2.

Further, the temperature acquisition system 4 may further include a supporting plate 7 fixedly connected to one side of the housing of the signal processor 2, the supporting plate 7 may be provided with a plurality of supporting holes 71 penetrating therethrough, the plurality of supporting holes 71 correspond to the plurality of temperature detectors 5 one to one, and one end of the housing 54 of each of the plurality of temperature detectors 5 passes through the corresponding supporting hole 71. Therefore, the supporting plate 7, the shell of the signal processor 2 and the shell of the display 3 are sequentially connected and fixed together to form a whole, and the operation is convenient. There are various ways for sequentially connecting and fixing the support plate 7, the housing of the signal processor 2 and the housing of the display 3, and there is no limitation here, in this embodiment, threaded holes may be formed around the support plate 7, the housing of the signal processor 2 and the housing of the display 3, and the three may be connected and fixed together by bolts.

By adopting the connection and fixing mode, but the peripheries of the supporting plate 7, the shell of the signal processor 2 and the shell of the display 3 are still exposed outside, the temperature difference monitoring device 1 can also comprise at least one protective cover 8, and the number of the protective covers 8 corresponds to the number of the temperature acquisition system 4, the signal processor 2 and the display 3; the two ends of the protective cover 8 are open, the protective cover 8 is covered by any opening and arranged on the supporting plate 7, the shell of the signal processor 2 and the shell of the display 3 which are fixedly connected together, and a transparent protective cover 81 is arranged at the opening close to one end of the display 3. This may protect the device to some extent.

For the convenience of inspection, it is preferable that the device be directly provided on the fuel cell end plate 6, and therefore, the temperature difference monitoring device 1 may further include at least one fixing member 9, and the fixing member 9 fixes the support plate 7 to the fuel cell end plate 6 so that the heat-conducting member 51 is in contact with the surface of the fuel cell end plate 6.

The fixing member 9 has various structures, which are not limited herein, and in this embodiment, the fixing member 9 may include a rubber suction cup 91, and the rubber suction cup 91 is fixedly disposed on the support plate 7, and is attached to the fuel cell end plate 6 by the rubber suction cup 91 in use.

As shown in fig. 4, the fuel cell end plate 6 may be divided into a plurality of detection regions 61, and each detection region 61 corresponds to a group of the temperature acquisition system 4, the signal processor 2, the display 3, and the protective cover 8. By dividing the test area 61 into a plurality of test areas, the smaller size can improve the test accuracy, and the color distribution diagram can be formed to a larger extent.

The detection area 61 may have various shapes, but is not limited thereto, and the shapes of the support plate 7, the housing of the signal processor 2, and the housing of the display 3 may correspond to the shape of the detection area 61, so that the entire fuel cell end plate 6 can be covered well, for example: the detection area 61 may be a quadrangle, and the side walls of the support plate 7, the housing of the signal processor 2, and the housing of the display 3 corresponding to the detection area 61 may also be a quadrangle, and the shape and size are the same as those of the detection area 61, so that the entire fuel cell end plate 6 can be covered well.

The above is not relevant and is applicable to the prior art.

While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.