Calibration and calibration device for temperature probe and thermal insulation equipment

Abstract

The utility model relates to the technical field of energy storage batteries, in particular to a calibration and calibration device for a temperature probe and heat preservation equipment. A calibration and calibration device for a temperature probe comprises an accommodating shell which is provided with an accommodating space, and the accommodating space is suitable for accommodating a heat-conducting medium; the pipe body is arranged at the bottom of the containing shell, the pipe body is provided with a flow channel groove, the flow channel groove is communicated with the containing space, the pipe body is provided with a hollow through hole, and the interior of the through hole is suitable for being connected with a temperature sensor fixedly connected with the energy storage battery in a clamped mode. According to the utility model, the problem that the energy storage battery module and the temperature sensor on the energy storage battery module need to be repeatedly dismounted and mounted in the process of calibration after the temperature sensor in the battery module is taken out and calibration after the temperature sensor is taken out, which is very inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to a calibration and demarcation device for a temperature probe and a heat preservation device. Background Art

[0002] The energy storage battery module is composed of multiple energy storage monomers in a series-parallel structure. It is the basic unit of the battery cluster of the energy storage power station. In order to ensure the safety of the energy storage battery module, the BMS will monitor its voltage, temperature and other parameters in real time. For temperature monitoring, it is usually composed of traditional electrical sensors such as thermocouples and thermistors. When the battery module is assembled, the above resistors are installed at the battery terminals to achieve real-time monitoring of the temperature of the energy storage battery module.

[0003] However, as the use time increases, the above temperature sensor may be affected by the test environment and device aging, and its characteristics may change, causing the relationship curve between its temperature and resistance to change, thereby affecting the temperature measurement accuracy, and it needs to be checked and recalibrated regularly. In the existing technology, the temperature sensor in the battery module is usually taken out and calibrated. This process requires repeated disassembly and installation of the energy storage battery module and the temperature sensor thereon, which is very inconvenient. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that the temperature sensor in the battery module is taken out and calibrated. This process of calibrating the temperature sensor after taking it out requires repeated disassembly and installation of the energy storage battery module and the temperature sensor thereon, which is very inconvenient, thereby providing a calibration and demarcation device and a heat preservation device for a temperature probe.

[0005] In order to solve the above problems, the utility model provides a calibration and calibration device for a temperature probe, comprising:

[0006] A housing shell, wherein the housing shell has a housing space, and the housing space is suitable for housing a heat-conducting medium;

[0007] The tube body is arranged at the bottom of the accommodating shell, the tube body is provided with a flow channel groove, the flow channel groove is communicated with the accommodating space, the tube body is provided with a hollow through hole, and the through hole is suitable for clamping the temperature sensor.

[0008] Optionally, the tube body is annular, the flow channel groove is annular, and the through hole is annular.

[0009] Optionally, the inner diameter of the flow channel groove is larger than the inner diameter of the through hole.

[0010] Optionally, the bottom plate of the accommodating shell is provided with a groove, and a heating plate is provided in the groove.

[0011] Optionally, two corresponding side panels of the accommodating shell are respectively provided with wire tubes, and electric wires are passed through the wire tubes, and the electric wires are connected to the heating plate.

[0012] Optionally, a sealing cover plate is further included, and the accommodating shell has an opening, and the opening is adapted to the sealing cover plate.

[0013] Optionally, the sealing cover plate is provided with a liquid injection pipe, and the liquid injection pipe is suitable for a heat-conducting medium to flow through.

[0014] Optionally, it also includes a clamping ring, which is sleeved on the outer circumference of the temperature sensor and is clamped and connected to the tube body.

[0015] Optionally, a heating ring is sleeved on the outer circumference of the tube body.

[0016] A heat preservation device comprises the above-mentioned calibration and calibration device for temperature probes and a heat preservation component, wherein the calibration and calibration device for temperature probes is arranged in the heat preservation component.

[0017] The technical solution of the utility model has the following advantages:

[0018] 1. The temperature probe calibration and demarcation device provided by the utility model comprises: a housing having a storage space, the storage space being suitable for accommodating a heat-conducting medium; a tube body arranged at the bottom of the housing, the tube body being provided with a flow channel, the flow channel being connected to the storage space, the tube body being provided with a hollow through hole, the through hole being suitable for snapping in a temperature sensor fixedly connected to an energy storage battery. During the whole process, there is no need to disassemble the temperature sensor, only the energy storage battery needs to be disassembled to expose the temperature sensor, and then the temperature sensor is snapped in through the through hole, and a heat-conducting medium is placed in the storage space, the heat-conducting medium flows into the flow channel, and the temperature of the temperature sensor is controlled by the heat-conducting medium, and a temperature-resistance curve is obtained, thereby simplifying the calibration process and improving efficiency.

[0019] 2. The temperature probe calibration and demarcation device provided by the utility model has an annular tube body, an annular flow channel groove, and an annular through hole. The annular through hole is adapted to the temperature sensor, and the heat-conducting medium in the annular flow channel groove provides the temperature environment required for calibration and demarcation for the temperature sensor.

[0020] 3. The temperature probe calibration and demarcation device provided by the utility model has an inner diameter of the flow channel groove that is larger than the inner diameter of the through hole, so that a ring-shaped temperature area is formed by the heat-conducting medium in the flow channel groove to provide the temperature sensor with the temperature required for the test environment.

[0021] 4. The temperature probe calibration and demarcation device provided by the utility model has a bottom plate of the housing provided with a groove, a heating plate provided in the groove, and the temperature in the housing space is changed by the heating plate.

[0022] 5. The temperature probe calibration and demarcation device provided by the utility model comprises two corresponding side panels of the housing respectively provided with wire tubes, wires are passed through the wire tubes, the wires are connected to the heating plate, and current is passed through the wires to make the heating plate generate heat.

[0023] 6. The temperature probe calibration and demarcation device provided by the utility model further includes a sealing cover plate. The accommodating shell has an opening, and the opening is adapted to the sealing cover plate. The sealing cover plate plays a role of sealing the opening of the accommodating shell.

[0024] 7. The temperature probe calibration and demarcation device provided by the utility model has a sealing cover plate provided with a liquid injection pipe, the liquid injection pipe is suitable for the heat transfer medium to flow through, and the heat transfer medium flows into the liquid injection pipe.

[0025] 8. The temperature probe calibration and demarcation device provided by the utility model also includes a clamping ring, which is sleeved on the outer periphery of the temperature sensor and is clamped and connected to the tube body, so as to further protect the temperature sensor.

[0026] 9. The temperature probe calibration and demarcation device provided by the utility model has a heating ring sleeved on the outer peripheral surface of the tube body, and the heating ring changes the temperature of the heat-conducting medium in the flow channel groove.

[0027] 10. The thermal insulation device provided by the utility model has the advantages described in any of the above items due to the use of the calibration and calibration device for the temperature probe described in any of the above items, and also includes a thermal insulation component, in which the calibration and calibration device for the temperature probe is arranged, and the thermal insulation component plays a role of thermal insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An exploded view of a calibration and calibration device for a temperature probe provided in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of a housing and a tube provided in an embodiment of the present utility model;

[0031] Figure 3 A schematic diagram of a housing, a tube body and a clamping ring provided in an embodiment of the utility model;

[0032] Figure 4 A half-section view of a tube body provided in an embodiment of the utility model;

[0033] Figure 5 A schematic diagram of a sealing cover plate provided in an embodiment of the utility model;

[0034] Figure 6 A schematic diagram of a heat preservation assembly provided in an embodiment of the utility model;

[0035] Figure 7 It is a schematic diagram of a calibration and demarcation device and a heat preservation device for a temperature probe provided in an embodiment of the utility model.

[0036] Explanation of the reference numerals: 1. Sealing cover plate; 101. Liquid injection tube; 2. Containment shell; 201. Containment space; 202. Bottom plate; 203. Wire tube; 204. Heating plate; 3. Clamp; 4. Tube body; 401. Flow channel; 402. Through hole; 403. Heating ring; 5. Insulation assembly; 501. Insulation shell; 502. Insulation cover plate; 503. Wire hole; 504. Pipe hole; 505. Through hole. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 A specific implementation of the temperature probe calibration and demarcation device shown in -5 includes: a containing shell 2, and a tube 4 arranged at the bottom of the containing shell 2.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the housing 2 is a housing with an opening, and the housing 2 has a housing space 201, and the housing space 201 is suitable for accommodating a heat-conducting medium, and a temperature sensor is also arranged in the housing space 201. Specifically, the heat-conducting medium is liquid nitrogen or water. Figure 1 , Figure 2 As shown, the bottom plate 202 of the housing 2 is provided with a groove, and a heating plate 204 is provided in the groove. To facilitate heating by the heating plate 204, as shown in FIG. Figure 1 , Figure 2 As shown, the two corresponding side plates of the accommodating shell 2 are respectively provided with wire tubes 203, wires are passed through the wire tubes 203, the wires are connected to the heating plate 204, and the wire tubes 203 are sealed to prevent the heat-conducting medium from flowing out through the guide tube.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the housing 2 is also provided with six tubes 4, which are arranged in two rows and parallel to each other, and the tubes 4 are plug-connected with the bottom plate 202 of the housing. Figure 4 As shown, the tube body 4 is annular and has a flow channel 401 and a hollow through hole 402. The flow channel 401 is connected to the accommodating space 201, that is, the heat-conducting medium in the accommodating space 201 can flow into the flow channel 401. The through hole 402 is suitable for clamping the temperature sensor. It should be noted that the temperature sensor is a temperature probe, and the through hole 402 is not connected to the accommodating space 201. Figure 4 As shown, the flow channel groove 401 is annular, the through hole 402 is annular, and the inner diameter of the flow channel groove 401 is larger than the inner diameter of the through hole 402. Figure 4 As shown, a heating ring 403 is sleeved on the outer circumference of the tube body 4. Figure 1 , Figure 3 As shown, six clamping rings 3 are also included, wherein the clamping rings 3 are arranged in one-to-one correspondence with the tube body 4, the clamping rings 3 are sleeved on the outer circumference of the temperature sensor, and the clamping rings 3 are clamped with the ends of the tube body 4 away from the accommodating shell 2.

[0044] To seal the opening of the housing 2, Figure 5As shown, it also includes a sealing cover plate 1, which is adapted to the opening of the accommodating shell 2. The sealing cover plate 1 is provided with a liquid injection pipe 101, and the liquid injection pipe 101 is suitable for flowing a heat-conducting medium.

[0045] A heat preservation device, comprising the above-mentioned temperature probe calibration and calibration device, and also comprising a heat preservation component 5, wherein the temperature probe calibration and calibration device is arranged in the heat preservation component 5, and the heat preservation component 5 plays a role of heat insulation and heat preservation. Figure 6 , Figure 7 As shown, the heat preservation assembly 5 includes a heat preservation shell 501 and a heat preservation cover plate 502. The heat preservation shell 501 is used to accommodate the temperature probe calibration and calibration device, such as Figure 6 As shown, a wire hole 503 is respectively provided on the four side plates of the insulation shell 501, and the wire hole 503 is used to allow the wire tube 203 to pass through; a pipe hole 504 is provided on the bottom plate 202 of the insulation shell 501, and the pipe hole 504 is used to allow the injection tube 101 to pass through; six through holes 505 are provided on the insulation cover plate 502, and the through holes are arranged one by one corresponding to the tube body 4, and the through holes 505 are used to allow the tube body 4 to pass through.

[0046] After the energy storage battery has been used for a long time, the temperature sensor is affected by factors such as the test environment, and the temperature measurement accuracy is inaccurate. Before calibration and calibration, the temperature probe is placed in the insulation component 5 using the calibration and calibration device. When the temperature sensor is calibrated at room temperature of 20°C (293K) or above, the energy storage battery is taken out, and the cover plate thereon is removed to expose the temperature sensor. The device of the utility model is placed on the upper surface of the energy storage battery where the temperature sensor is exposed, so that the probe of the temperature sensor to be calibrated is placed in different through holes 402 of the tube body 4. Among them, a standard temperature sensor is placed in one through hole 402, and water is added as a heat transfer medium through the injection tube 101 to monitor the temperature of the reference temperature sensor in real time. In order to make the temperature sensor calibration more accurate, multiple temperature points need to be collected for calibration. For example, For example, four temperature points T1, T2, T3, and T4 can be selected, and power P1 is applied to the heating plate 204 and the heating ring 403 to supply power so that the temperature inside the housing 2 reaches T1. After T1 stabilizes, it is kept at the temperature point T1 for a period of time, such as 30 minutes, and the temperature data of the reference temperature sensor and the resistance data of the temperature sensor to be calibrated within this period of time are collected. To make the calibration more accurate, the resistance data within the above time period are averaged to obtain R1, and the temperature is averaged to obtain T11. The above steps are repeated at points T2, T3, and T4 to obtain R2, R3, R4, T22, T33, and T44, and the temperature and resistance relationship curves of the temperature sensor to be calibrated at the four temperatures of T1, T2, T3, and T4 can be obtained, thereby realizing the calibration of the temperature sensor.

[0047] When the temperature sensor is calibrated at room temperature below 20°C (293K), the energy storage battery is taken out and the cover plate thereon is removed to expose the temperature sensor. The device of the utility model is placed on the upper surface of the energy storage battery with the temperature sensor exposed, so that the probe of the temperature sensor to be calibrated is placed in different through holes 402 of the tube body 4. A standard temperature sensor is placed in one through hole 402, and liquid nitrogen is added as a heat transfer medium through the injection tube 101. The temperature of the reference temperature sensor is monitored in real time. After the heat transfer medium is added, the temperature in the housing 2 will slowly drop and eventually reach a temperature below 0. At temperature point T1 of ℃, the addition of heat-conducting medium is stopped. Since the temperature of the heat-conducting medium is lower than the ambient temperature, the medium will gradually evaporate. With the evaporation and reduction of the heat-conducting medium in the accommodating shell 2, the temperature in the through hole 402 will slowly increase until it reaches the room temperature. The above temperature change process is very slow, and the data meets the sensor calibration requirements. By collecting the temperature data of the reference temperature sensor and the temperature sensor to be calibrated during the above temperature rise process and the resistance data of the temperature sensor to be calibrated, the temperature-resistance relationship curve of the temperature sensor to be calibrated can be obtained, thereby realizing the calibration of the temperature sensor.

[0048] The temperature probe calibration and demarcation device provided by the utility model has the following advantages: (1) the device can be directly matched with the energy storage battery without removing the probe of the temperature sensor on the energy storage battery. It is only necessary to disassemble the energy storage battery to expose the temperature sensor, and then connect the temperature sensor on the energy storage battery through the through hole 402. By placing a heat-conducting medium in the accommodating space 201 and letting the heat-conducting medium flow into the flow channel 401, the temperature of the temperature sensor is controlled by the heat-conducting medium to obtain the temperature-resistance curve, thereby simplifying the calibration process and improving efficiency; (2) the temperature sensors in multiple temperature ranges can be calibrated and demarcated, for example, the temperature range above room temperature and the temperature range below 0°C can be calibrated, covering a wider temperature range.

[0049] As an alternative embodiment, the tube body 4 may also be in other shapes such as rectangle, ellipse, etc.

[0050] As an alternative implementation, the number of the tube bodies 4 may be 2, 3, 4 or even more.

[0051] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A temperature probe calibration and calibration device, characterized in that: include: A containing shell (2), the containing shell (2) having a containing space (201), the containing space (201) being suitable for containing a heat-conducting medium; A tube body (4), the tube body (4) being arranged at the bottom of the accommodating shell (2), the tube body (4) being provided with a flow channel groove (401), the flow channel groove (401) being in communication with the accommodating space (201), the tube body (4) being provided with a hollow through hole (402), the through hole (402) being suitable for snapping in a temperature sensor fixedly connected to an energy storage battery.

2. The temperature probe calibration and calibration device according to claim 1, characterized in that: The tube body (4) is annular, the flow channel groove (401) is annular, and the through hole (402) is annular.

3. The temperature probe calibration and calibration device according to claim 2, characterized in that: The inner diameter of the flow channel groove (401) is greater than the inner diameter of the through hole (402).

4. The temperature probe calibration and calibration device according to claim 3, characterized in that: The bottom plate (202) of the accommodating shell (2) is provided with a groove, and a heating plate (204) is provided in the groove.

5. The temperature probe calibration and calibration device according to claim 4, characterized in that: Two corresponding side plates of the accommodating shell (2) are respectively provided with wire tubes (203), and electric wires are passed through the wire tubes (203), and the electric wires are connected to the heating plate (204).

6. The temperature probe calibration and calibration device according to claim 1, characterized in that: It also comprises a sealing cover plate (1), and the accommodating shell (2) has an opening, and the opening is adapted to the sealing cover plate (1).

7. The temperature probe calibration and calibration device according to claim 6, characterized in that: The sealing cover plate (1) is provided with a liquid injection pipe (101), and the liquid injection pipe (101) is suitable for a heat-conducting medium to flow through.

8. The temperature probe calibration and calibration device according to claim 6, characterized in that: It also comprises a clamping ring (3), wherein the clamping ring (3) is sleeved on the outer circumference of the temperature sensor, and the clamping ring (3) is clamped and connected to the tube body (4).

9. The temperature probe calibration and calibration device according to claim 3, characterized in that: A heating ring (403) is sleeved on the outer peripheral surface of the tube body (4).

10. A heat preservation device, characterized in that: The device comprises the temperature probe calibration and demarcation device according to any one of claims 1 to 9, and also comprises a heat preservation component (5), wherein the temperature probe calibration and demarcation device is arranged in the heat preservation component (5).

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