WO2021103173A1

WO2021103173A1 - External water circulation temperature control system for fuel cell fixture

Info

Publication number: WO2021103173A1
Application number: PCT/CN2019/125069
Authority: WO
Inventors: 陈嘉怡
Original assignee: 浙江嘉杰汽车设计有限公司
Priority date: 2019-11-29
Filing date: 2019-12-13
Publication date: 2021-06-03
Also published as: CN110968129A

Abstract

The present invention relates to the technical field of battery manufacturing, and particularly relates to an external water circulation temperature control system for a fuel cell fixture. The system of the present invention comprises a fixture provided with a water inlet and a water outlet in mutual communication with each other. The water outlet communicates with a constant-temperature water mixing container via a first circulation water pump, and the constant-temperature water mixing container is provided with a first temperature sensor. A hot water delivery pipeline used to deliver hot water into the constant-temperature water mixing container and a cold water delivery pipeline used to deliver cold water into the constant-temperature water mixing container are provided between the first circulation water pump and the constant-temperature water mixing container. The constant-temperature water mixing container communicates with the water inlet via a second circulation water pump. The water circulation temperature control system provided by the present invention ensures fixtures are maintained at a constant temperature, thereby improving reliability of test results. In addition, the present invention uses a data acquisition and analysis system and a control system to achieve data acquisition and control for flow volumes and temperatures, thereby enabling automation of a control process, and guaranteeing production efficiency.

Description

External water circulation temperature control system for fuel cell fixture

Technical field

The invention belongs to the technical field of battery preparation, and in particular relates to a fuel cell clamp external water circulation temperature control system.

Background technique

With the continuous development of society, battery products have gradually matured, and battery production technology, production efficiency, and automation have also been gradually improved. However, in the current battery industry, in battery production, it is necessary to perform quality inspection on the battery, which usually uses a testing fixture to test the voltage of the battery. However, since the factor of temperature has a greater impact on the detection result, and the fixture itself in the prior art does not have a constant temperature function, the reliability of the detection result needs to be improved.

For example, a Chinese utility model patent discloses a battery testing fixture [application number: 201720440544.9]. The utility model includes: a base, a testing component arranged on the base and electrically connected to an external testing device, and the testing component includes a separate set The positive detection component electrically connected to the positive pole of the external detection device, the negative detection component electrically connected to the negative pole of the external detection device, and both the positive detection component and the negative detection component include a soft conductive part and a hard fixing part. The soft conductive part is partially composed of After the hard fixing member is contained or clamped, the two are integrally fixed on the base, and another part of the soft conductive member extends out of the hard fixing member to form a contact part for the tabs of the battery to be tested to fall into contact.

The utility model has the advantage of avoiding inaccessibility or poor contact during detection, but it still does not solve the above-mentioned problems.

Summary of the invention

The purpose of the present invention is to provide a temperature control system for the external water circulation of the fuel cell clamp to solve the above-mentioned problems.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

An external water circulation temperature control system for a fuel cell fixture, comprising a fixture provided with a water inlet and a water outlet, the water inlet and the water outlet are in communication with each other, and the water outlet is connected to a mixing constant temperature water tank through a first circulating water pump, and the mixing constant temperature The water tank is equipped with a first temperature sensor. Between the first circulating water pump and the mixing constant temperature water tank, there are hot water delivery pipes for delivering hot water to the mixing constant temperature water tank and cold water delivery for delivering cold water to the mixing constant temperature water tank. Pipeline, the mixing constant temperature water tank is communicated with the water inlet through the second circulating water pump.

In the above fuel cell clamp external water circulation temperature control system, a water storage tank is also provided between the first circulating water pump and the mixing constant temperature water tank, and the water storage tank is connected with the hot water delivery pipe or/and the cold water delivery pipe.

In the above fuel cell clamp external water circulation temperature control system, the hot water delivery pipeline includes a heater connected to the first circulating water pump, and the heater is connected to the mixing thermostatic water tank through the first solenoid valve.

In the above fuel cell fixture external water circulation temperature control system, the hot water delivery pipeline further includes a second temperature sensor for measuring the temperature of the hot water and a first flow meter for measuring the flow of the hot water, the first flow The meter is located between the first solenoid valve and the mixing thermostatic water tank.

In the above fuel cell fixture external water circulation temperature control system, the cold water delivery pipeline includes a second solenoid valve for adjusting the flow of cold water, a third temperature sensor for measuring the temperature of cold water, and a second flow for measuring the flow of cold water The meter is arranged on the cold water conveying pipeline, and the second flow meter is located between the second solenoid valve and the mixing thermostatic water tank.

In the external water circulation temperature control system of the above fuel cell fixture, a heat exchanger is also provided between the water outlet and the first circulating water pump.

The external water circulation temperature control system of the fuel cell fixture on the above also includes a data acquisition and analysis system for collecting data from various temperature sensors and data from various flow meters, and a control system for controlling various valves, circulating pumps and heat exchangers. The data acquisition and analysis system is in communication connection with the control system.

In the external water circulation temperature control system of the upper fuel cell clamp, the clamp includes an upper clamp body and a lower clamp body that are clamped with each other. The upper clamp body and the lower clamp body are respectively provided with a water inlet and a water outlet, and the water inlet The water outlet is communicated with the water outlet through a communication pipeline located in the upper clamp body and the lower clamp body.

In the above fuel cell clamp external water circulation temperature control system, the communication pipeline includes a plurality of pipelines arranged in parallel, and the ends of two adjacent pipelines are connected through the connecting pipe.

In the upper fuel cell clamp external water circulation temperature control system, the upper clamp body is fixedly connected with a first conductive plate on the side close to the lower clamp body, and the lower clamp body is fixedly connected with a second conductive plate on the side close to the upper clamp body. The upper clip body and the lower clip body are respectively provided with a number of insulating pads made of insulating materials. The upper end of the insulating pad protrudes from the first conductive plate or the second conductive plate. The two insulating pads at opposite positions are attached to each other, and also include a pressure sensor arranged on the lower clip body or the upper clip body.

Compared with the existing technology, the advantages of the present invention are:

1. The water circulation temperature control system provided by the present invention can ensure that the fixture maintains a constant temperature, thereby improving the reliability of the detection result.

2. The present invention uses the data acquisition analysis system and the control system to perform data acquisition and control of the flow and temperature, realizes the automation of the control process, and ensures the production efficiency.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is a schematic diagram of a part of the structure of the present invention;

Figure 3 is a schematic diagram of the structure of the clamp;

Figure 4 is a perspective view of the lower clip body;

In the picture: clamp 1, water inlet 2, water outlet 3, first circulating water pump 4, water storage tank 5, first temperature sensor 6, mixing constant temperature water tank 7, hot water delivery pipe 8, cold water delivery pipe 9, and second circulating water pump 10. Heat exchanger 11, data acquisition and analysis system 12, control system 13, upper clip body 14, lower clip body 15, connecting pipeline 16, pipeline 17, connecting pipe 18, first conductive plate 19, second conductive plate 20 , Insulation pad 21, pressure sensor 22, heater 81, first solenoid valve 82, second temperature sensor 83, first flow meter 84, second solenoid valve 91, third temperature sensor 92, second flow meter 93.

Detailed ways

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, a fuel cell clamp external water circulation temperature control system includes a clamp 1 provided with a water inlet 2 and a water outlet 3. The water inlet 2 and the water outlet 3 are in communication with each other, and the water outlet 3 passes through the first circulation The water pump 4 is in communication with the mixing constant temperature water tank 7. The mixing constant temperature water tank 7 is provided with a first temperature sensor 6, and between the first circulating water pump 4 and the mixing constant temperature water tank 7 is provided for delivering hot water to the mixing constant temperature water tank 7. The hot water delivery pipe 8 and the cold water delivery pipe 9 for delivering cold water to the mixing constant temperature water tank 7 are communicated with the water inlet 2 through the second circulating water pump 10.

When the present invention is used, the cooled water in the fixture 1 flows out from the water outlet 3, and is pumped into the hot water delivery pipe 8 and the cold water delivery pipe 9 through the first circulating water pump 4. The heat in the hot water delivery pipe 8 The water can be heated by a heater arranged between the first circulating water pump 4 and the hot water delivery pipe 8, or a heater arranged on the hot water delivery pipe 8, and enters the mixing constant temperature water tank 7 to mix to obtain constant temperature water. The sensor 6 can measure the temperature of the mixed water in the mixing constant temperature water tank 7. After the mixing is completed, the second circulating water pump 10 is pumped into the fixture 1 through the water inlet 2 to ensure the constant temperature of the fixture 1, so the water circulation temperature control system provided by the present invention can Ensure that the fixture 1 maintains a constant temperature, thereby improving the reliability of the test results.

Preferably, a water storage tank 5 is further provided between the first circulating water pump 4 and the mixing constant temperature water tank 7, and the water storage tank 5 is connected to the hot water delivery pipe 8 or/and the cold water delivery pipe 9, and the water storage tank 5 can store The role of water buffering.

1 and 2, the hot water delivery pipeline 8 includes a heater 81 connected to the first circulating water pump 4, and the heater 81 is connected to the mixing thermostatic water tank 7 through the first solenoid valve 82, so The hot water delivery pipeline 8 also includes a second temperature sensor 83 for measuring the temperature of hot water and a first flow meter 84 for measuring the flow of hot water. The first flow meter 84 is located at the first solenoid valve 82 and the mixing thermostat. Between 7 water tanks.

The cold water is heated by the heater 81, and the first solenoid valve 82 can control the opening degree of the hot water delivery pipe 8, thereby controlling the flow of hot water, and further regulating the mixed water temperature in the mixing thermostatic water tank 7.

As shown in FIG. 1 and FIG. 2, the cold water delivery pipeline 9 includes a second solenoid valve 91 for adjusting the flow of cold water, a third temperature sensor 92 for measuring the temperature of cold water, and a second flow meter for measuring the flow of cold water. 93 is arranged on the cold water delivery pipe 9, and the second flow meter 93 is located between the second solenoid valve 91 and the mixing thermostatic water tank 7.

The cold water is delivered to the mixing constant temperature water tank 7 through the cold water delivery pipe 9. The second solenoid valve 91 can control the opening of the cold water delivery pipe 9, thereby controlling the flow of cold water, and further regulating the mixed water temperature in the mixing constant temperature water tank 7.

As shown in Fig. 1, a heat exchanger 11 is also provided between the water outlet 3 and the first circulating water pump 4, so that the residual heat in the water after the heat release can be further utilized and the energy utilization rate can be improved.

The first temperature sensor 6, the second temperature sensor 83 and the third temperature sensor 92 in the present invention can all be commercially available temperature sensors.

As shown in Figure 1, it also includes a data collection and analysis system 12 for collecting data from various temperature sensors and data from various flow meters, and a control system 13 for controlling various valves, circulating pumps, and heat exchangers 11. The data collection The analysis system 12 and the control system 13 are in communication connection.

When in use, the data collection and analysis system 12 collects the detection data of the second temperature sensor 83, the first flow meter 84, the second solenoid valve 91, the third temperature sensor 92 and the first temperature sensor 6, and transmits the information after analysis and processing. For the control system 13, the control system 13 adjusts the flow rate by controlling each circulating pump and solenoid valve, and controls the water temperature by controlling the heat exchanger 11 and the heater 81, so as to ensure that the mixed water temperature in the mixing constant temperature water tank 7 remains constant. Therefore, the present invention uses The data acquisition and analysis system 12 and the control system 13 perform data acquisition and control on the flow rate and temperature, so as to realize the automation of the control process and ensure the production efficiency.

As shown in FIGS. 3 and 4, the clamp 1 includes an upper clamp body 14 and a lower clamp body 15 which are clamped to each other. The upper clamp body 14 and the lower clamp body 15 are respectively provided with a water inlet 2 and a water outlet 3 The water inlet 2 and the water outlet 3 are connected by a connecting pipe 16 located in the upper clip body 14 and the lower clip body 15. The water in the pipe 16 releases heat to ensure that the fixture 1 is in a constant temperature state during the measurement.

Specifically, the communication pipeline 16 includes a plurality of parallel pipelines 17, and the ends of two adjacent pipelines 17 are connected through a connecting pipe 18, which increases the size of the pipeline 16 and the upper clamp body 14 and the lower clamp. The contact area between the bodies 15 enables the fixture 1 to reach the experimental temperature quickly and shortens the heating process.

3 and 4, the upper clip body 14 is fixedly connected to the first conductive plate 19 on the side close to the lower clip body 15 and the lower clip body 15 is fixedly connected to the second conductive plate 20 on the side close to the upper clip body 14 During testing, the battery to be tested is placed between the first conductive plate 19 and the second conductive plate 20. The upper clip body 14 and the lower clip body 15 are respectively provided with a plurality of insulating pads 21 made of insulating materials, The insulating pads 21 are arranged in the corresponding positions of the upper clip body 14 and the lower clip body 15 one by one. The insulating material can be rubber. The upper end of the insulating pad 21 protrudes from the first conductive plate 19 or the second conductive plate 20 to sandwich the upper clip body. 14 and the lower clamping body 15 can make the two insulating pads 21 in opposite positions fit each other, so that during the test, it can ensure that the battery to be tested is electrically connected to the first conductive plate 19 and the second conductive plate 20, and can prevent the first conductive plate 19 and the second conductive plate 20. A conductive plate 19 and a second conductive plate 20 are in contact with each other to be short-circuited, and also include a pressure sensor 22 arranged on the lower clip body 15 or the upper clip body 14.

The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the technical field of the present invention can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definition of the appended claims. Range.

Although this article uses more fixtures 1, water inlet 2, water outlet 3, first circulating water pump 4, water storage tank 5, first temperature sensor 6, mixing constant temperature water tank 7, hot water delivery pipe 8, cold water delivery pipe 9, The second circulating water pump 10, the heat exchanger 11, the data acquisition and analysis system 12, the control system 13, the upper clip body 14, the lower clip body 15, the connecting pipe 16, the pipe 17, the connecting pipe 18, the first conductive plate 19, the first Two conductive plates 20, insulating pad 21, pressure sensor 22, heater 81, first solenoid valve 82, second temperature sensor 83, first flow meter 84, second solenoid valve 91, third temperature sensor 92, second flow rate It counts 93 and other terms, but does not exclude the possibility of using other terms. These terms are used only to describe and explain the essence of the present invention more conveniently; to interpret them as any additional limitation is contrary to the spirit of the present invention.

Claims

A fuel cell clamp external water circulation temperature control system, comprising a clamp (1) provided with a water inlet (2) and a water outlet (3). The water inlet (2) and the water outlet (3) are connected to each other, and are characterized in that: The water outlet (3) is communicated with the mixing constant temperature water tank (7) through a first circulating water pump (4), and the mixing constant temperature water tank (7) is provided with a first temperature sensor (6) and a first circulating water pump (4). Between it and the mixing constant temperature water tank (7), there is a hot water delivery pipe (8) for delivering hot water to the mixing constant temperature water tank (7) and a cold water delivery pipe for delivering cold water to the mixing constant temperature water tank (7) (9) The mixing constant temperature water tank (7) is communicated with the water inlet (2) through the second circulating water pump (10).
The fuel cell clamp external water circulation temperature control system according to claim 1, characterized in that: a water storage tank (5) is also provided between the first circulating water pump (4) and the mixing constant temperature water tank (7), and the water storage tank ( 5) It is connected to the hot water delivery pipe (8) or/and the cold water delivery pipe (9).
The fuel cell fixture external water circulation temperature control system according to claim 1, wherein the hot water delivery pipe (8) includes a heater (81) connected to the first circulating water pump (4), and the heating The device (81) communicates with the mixing thermostatic water tank (7) through the first solenoid valve (82).
The external water circulation temperature control system of the fuel cell fixture according to claim 3, characterized in that: the hot water delivery pipe (8) further comprises a second temperature sensor (83) for measuring the temperature of the hot water and a second temperature sensor (83) for measuring the temperature of the hot water. The first flow meter (84) of water flow, the first flow meter (84) is located between the first solenoid valve (82) and the mixing thermostatic water tank (7).
The fuel cell clamp external water circulation temperature control system according to claim 1, wherein the cold water delivery pipe (9) includes a second solenoid valve (91) for adjusting the flow of cold water, and a second solenoid valve (91) for measuring the temperature of cold water. Three temperature sensors (92) and a second flow meter (93) for measuring the flow of cold water are arranged on the cold water delivery pipe (9), and the second flow meter (93) is located at the second solenoid valve (91) and the mixing thermostat Between the water tank (7).
The fuel cell clamp external water circulation temperature control system according to claim 1, characterized in that: a heat exchanger (11) is also provided between the water outlet (3) and the first circulating water pump (4).
The fuel cell fixture external water circulation temperature control system according to claim 6, characterized in that it further comprises a data collection and analysis system (12) for collecting data from various temperature sensors and collecting data from various flow meters, and a data collection and analysis system (12) for controlling various valves, The control system (13) of the circulating pump and the heat exchanger (11), and the data acquisition and analysis system (12) and the control system (13) are in communication connection.
The fuel cell clamp external water circulation temperature control system according to claim 1, characterized in that: the clamp (1) comprises an upper clamp body (14) and a lower clamp body (15) which are clamped to each other, and the upper clamp body (14) ) And the lower clip body (15) are respectively provided with a water inlet (2) and a water outlet (3). The water inlet (2) and the water outlet (3) pass through the upper clip body (14) and the lower clip body ( The connecting pipeline (16) in 15) is connected.
The fuel cell clamp external water circulation temperature control system according to claim 8, characterized in that: the communication pipeline (16) includes a plurality of parallel pipes (17), and the ends of two adjacent pipes (17) Connected through the connecting pipe (18).
The fuel cell clamp external water circulation temperature control system according to claim 8, characterized in that: the upper clamp body (14) is fixedly connected to the first conductive plate (19) on the side close to the lower clamp body (15), and the lower clamp The side of the body (15) close to the upper clip body (14) is fixedly connected with a second conductive plate (20), and the upper clip body (14) and the lower clip body (15) are respectively provided with a plurality of insulating materials. The insulating pad (21), the upper end of the insulating pad (21) protrudes from the first conductive plate (19) or the second conductive plate (20), and the upper clip body (14) and the lower clip body (15) can be clamped to be opposite The two insulating pads (21) at the position are attached to each other, and also include a pressure sensor (22) arranged on the lower clamp body (15) or the upper clamp body (14).