CN219391143U - Temperature sensor for fuel cell - Google Patents
Temperature sensor for fuel cell Download PDFInfo
- Publication number
- CN219391143U CN219391143U CN202320113216.3U CN202320113216U CN219391143U CN 219391143 U CN219391143 U CN 219391143U CN 202320113216 U CN202320113216 U CN 202320113216U CN 219391143 U CN219391143 U CN 219391143U
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- China
- Prior art keywords
- base
- fuel cell
- detection chip
- circuit board
- temperature detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present utility model relates to a temperature sensor for a fuel cell, the sensor comprising: the temperature detection chip (7) is used for acquiring temperature information in the fuel cell flow channel; a circuit board (1) for collecting and analyzing temperature information; a base (4) for supporting the temperature detection chip (7) and/or the circuit board (1); the temperature detection chip (7) is connected with the circuit board (1) through a signal through the lead (2), the temperature detection chip (7) is abutted with the base (4), the circuit board (1) is fixedly connected with the base (4) on one side far away from the temperature detection chip (7), and the temperature detection chip (7) is positioned in a flow channel to be detected of the fuel cell. One side of the base (4) close to the temperature detection chip (7) is provided with a raised probe (9), and the probe (9) is abutted with the temperature detection chip (7). Compared with the prior art, the utility model has the advantages of small volume, lower cost, higher reliability and the like, and can be arranged in a battery.
Description
Technical Field
The utility model relates to the field of temperature sensors, in particular to a temperature sensor for a fuel cell.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator. It is a fourth power generation technology following hydroelectric power generation, thermal power generation, and nuclear power generation. The fuel cell converts the Gibbs free energy part in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so that the efficiency is high; in addition, fuel and oxygen are used as raw materials for the fuel cell, and no mechanical transmission part is arranged, so that the discharged harmful gas is very little, and the service life is long. From this, it can be seen that fuel cells are the most promising power generation technology from the viewpoints of energy saving and ecological environment protection.
The temperature of the cathode, the anode and the coolant in the operation process of the electric pile of key parts in the fuel cell is required to be monitored, and the operation condition of the electric pile is regulated according to the temperature, so that the optimal operation state of the electric pile is achieved, and the service life of the electric pile is prolonged. Therefore, the temperature sensor is an indispensable part of the operation of the fuel cell. The existing fuel cell temperature sensor has the following defects: 1. the sensor in the prior art has overlarge volume and influences flow resistance in the flow channel; 2. the sensor in the prior art is arranged outside the galvanic pile protective shell, the distance between the acquisition area and the galvanic pile body is far, and the value of the acquisition area is greatly different from the value of the galvanic pile body; 3. the prior art cannot meet the high integration requirement of a galvanic pile protective shell; 4. the prior art cannot be matched with the fuel cell stack body.
Disclosure of Invention
The object of the present utility model is to overcome at least one of the above-mentioned drawbacks of the prior art by providing a temperature sensor for a fuel cell which is small in size, can be arranged inside the cell, is less costly, and is more reliable.
The aim of the utility model can be achieved by the following technical scheme:
a temperature sensor for a fuel cell, the sensor comprising:
the temperature detection chip is used for acquiring temperature information in the fuel cell flow channel;
the circuit board is used for collecting and analyzing temperature information;
the base is used for supporting the temperature detection chip and/or the circuit board;
the temperature detection chip is connected with the circuit board through a wire signal, the temperature detection chip is abutted with the base, the circuit board is fixedly connected with the base on one side far away from the temperature detection chip, and the temperature detection chip is positioned in a flow channel to be detected of the fuel cell.
The wire forms a complete loop and mainly comprises an input section and an output section.
Further, a raised probe is arranged on one side of the base close to the temperature detection chip, and the probe is abutted with the temperature detection chip.
The probe is provided with a protruding structure and is used for fixing the temperature detection chip into the flow channel, so that the detection precision of the temperature detection chip is improved. The special convex shape of the probe is used for reducing the flow resistance and reducing the influence on the flow resistance when the probe enters the flow channel. In order to enable the position of the temperature detection chip to be located in the middle of the flow channel, a boss-shaped probe is machined on the base and used for fixing the temperature detection chip, and accuracy of temperature monitoring is improved.
The probe and the base main body are formed by injection molding during processing, or in order to restrict the temperature detection chip on the base, glue is added between the probe and the base main body, and the temperature detection chip and the probe are fixed together, so that stability is improved.
Further, the lead is connected inside the base in a penetrating way.
Further, a wire duct for accommodating wires is formed in the base.
The wire duct may have two separate ducts. The circuit board corresponds to the position of the outgoing end of the wire duct.
Further, the wire duct is filled with glue for sealing the wire.
Further, the base and the circuit board are bonded through glue.
In order to better connect the signal of the temperature detection chip to the circuit board above the base through the wire, and transmit the signal to the signal receiver through the circuit board, the base reserves two wire pore canals for the wire to pass through when processing, and fills through glue, realizes the seal between wire pore canals and the wire.
Further, a first sealing groove is formed in one side, close to the circuit board, of the base, and the glue is filled in the first sealing groove.
The first sealing groove can be used for placing a sealing ring. In order to achieve a better fixing effect on the circuit board, glue is filled in the first sealing groove, and meanwhile, a layer of glue is filled between the circuit board and the base.
Further, a runner side plate is arranged above the runner to be detected, and the runner side plate is fixedly connected with the base.
Further, the runner side plate is adhered to the base through glue.
Further, a second sealing groove is formed in one side, close to the base, of the runner side plate, and the glue is filled in the second sealing groove.
In order to fix the whole formed by the base and the circuit board, a second sealing groove is formed when the runner side plate is processed and used for connecting the base and the runner side plate together in a gluing mode.
Compared with the prior art, the utility model has the following advantages:
(1) In the utility model, in order to enable the position of the temperature detection chip to be positioned in the middle of the flow channel, a boss-shaped probe is selected to be processed on the base for fixing the temperature detection chip, so that the accuracy of temperature monitoring is improved;
(2) In the utility model, in order to better connect the signal of the temperature detection chip to the circuit board above the base through the wire and transmit the signal to the signal receiver through the circuit board, the base reserves two wire pore canals for the wire to pass through when in processing, and the sealing between the wire pore canals and the wire is realized through glue filling;
(3) In the utility model, in order to achieve a better fixing effect on the circuit board, the glue is filled in the first sealing groove, and meanwhile, a layer of glue is filled between the circuit board and the base; in order to fix the whole formed by the base and the circuit board, a second sealing groove is formed during processing of the runner cover plate and is used for connecting the base and the runner cover plate together in a gluing mode;
(4) The utility model adopts a machining mode for forming; the base is connected with the side wall of the runner in a cementing manner; connecting the temperature detection chip and the probe in a cementing manner; transmitting the signal to a collector in a via way; connecting the lead and the lead hole in a gluing way; connecting the circuit board and the base by adopting a cementing mode;
(5) The NTC, the base and the circuit board are packaged into a whole, the appearance is small, and the NTC, the base and the circuit board are used in areas with high space volume requirements, so that the detection of the temperature in the flow channel is facilitated, and the accuracy is improved; the volume is small, and the integration requirement of high integration in the battery can be met; the installation is convenient; the cost is lower; the reliability is higher;
(6) The utility model does not influence the flow resistance in the internal flow channel of the battery; can be arranged inside the battery, and has higher precision compared with the prior general technology which is arranged outside the battery.
Drawings
FIG. 1 is an overall exploded view of a temperature sensor in an embodiment;
FIG. 2 is a cross-sectional view of a base in an embodiment;
FIG. 3 is a diagram showing a connection between a temperature detecting chip and a wire in an embodiment;
FIG. 4 is a cross-sectional view of a runner cover plate in an embodiment;
FIG. 5 is a partial exploded view of a temperature sensor in an embodiment;
the reference numerals in the figures indicate: the circuit board 1, the wire 2, the first sealing groove 3, the base 4, the runner side plate 5, the wire duct 6, the temperature detection chip 7, the second sealing groove 8 and the probe 9.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are provided, but the protection scope of the present utility model is not limited to the following embodiments.
It should be noted that, in fig. 1 and fig. 5, the circuit board 1, the base 4 and the flow channel side plate 5 are shown to be connected together, and are drawn separately for convenience of illustration.
Examples
A temperature sensor for a fuel cell, as shown in fig. 5, the sensor comprising: a temperature detection chip 7 for acquiring temperature information in the fuel cell flow channel; a circuit board 1 for collecting and analyzing temperature information; a base 4 for supporting the temperature detection chip 7 and/or the circuit board 1;
the temperature detection chip 7 is in signal connection with the circuit board 1 through the lead 2, the temperature detection chip 7 is in butt joint with the base 4, the circuit board 1 is fixedly connected with the base 4 on one side far away from the temperature detection chip 7, and the temperature detection chip 7 is located in a flow channel to be detected of the fuel cell. The conductor 2 forms a complete loop and mainly comprises an input section and an output section.
As shown in fig. 2-3, a raised probe 9 is provided on one side of the base 4 near the temperature detecting chip 7, and the probe 9 abuts against the temperature detecting chip 7. The probe 9 has a convex structure for fixing the temperature detecting chip 7 into the flow passage, improving the detection accuracy of the temperature detecting chip 7. The special convex shape of the probe 9 is used for reducing the flow resistance and reducing the influence on the flow resistance when the probe 9 enters the flow passage. In order to enable the position of the temperature detection chip 7 to be located in the middle of the flow channel, a boss-shaped probe 9 is machined on the base 4 and used for fixing the temperature detection chip 7, and accuracy of temperature monitoring is improved.
The probe 9 and the main body of the base 4 are formed by injection molding during processing, or in order to restrict the temperature detection chip 7 on the base 4, glue is added between the probe 9 and the main body of the base 4, so that the temperature detection chip 7 and the probe 9 are fixed together, and the stability is improved.
The lead wires 2 are connected inside the base 4 in a penetrating way. The base 4 is provided with a wire duct 6 for accommodating the wire 2. The wire tunnel 6 may have two separate tunnels. The circuit board 1 corresponds to the position of the wire outlet end of the wire duct 6. The wire duct 6 is filled with glue for sealing the wires 2.
The base 4 is bonded to the circuit board 1 by glue. In order to better connect the signal of the temperature detection chip 7 to the circuit board 1 above the base 4 through the wires 2 and transmit the signal to the signal receiver through the circuit board 1, the base 4 is provided with two wire tunnels 6 for the wires to pass through during processing and is filled with glue, so that the sealing between the wire tunnels 6 and the wires 2 is realized. A first sealing groove 3 is formed in one side, close to the circuit board 1, of the base 4, and glue fills the first sealing groove 3. The first sealing groove 3 can be used for placing a sealing ring. In order to achieve a better fixing effect on the circuit board 1, the first sealing groove 3 is filled with glue, and meanwhile, a layer of glue is filled between the circuit board 1 and the base 4.
As shown in fig. 4, a flow passage side plate 5 is arranged above the flow passage to be detected, and the flow passage side plate 5 is fixedly connected with the base 4. The runner side plate 5 is bonded with the base 4 through glue. A second sealing groove 8 is formed in one side, close to the base 4, of the runner side plate 5, and glue fills the second sealing groove 8. In order to fix the whole body formed by the base 4 and the circuit board 1, a second sealing groove 8 is formed when the runner side plate 5 is processed, and is used for connecting the base 4 and the runner side plate 5 together in a gluing mode.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (10)
1. A temperature sensor for a fuel cell, the sensor comprising:
the temperature detection chip (7) is used for acquiring temperature information in the fuel cell flow channel;
a circuit board (1) for collecting and analyzing temperature information;
a base (4) for supporting the temperature detection chip (7) and/or the circuit board (1);
the temperature detection chip (7) is connected with the circuit board (1) through a wire (2) in a signal mode, the temperature detection chip (7) is abutted to the base (4), the circuit board (1) is fixedly connected with the base (4) on one side away from the temperature detection chip (7), and the temperature detection chip (7) is located in a flow channel to be detected of the fuel cell.
2. The temperature sensor for a fuel cell according to claim 1, wherein a convex probe (9) is provided on a side of the base (4) close to the temperature detecting chip (7), and the probe (9) is abutted against the temperature detecting chip (7).
3. The temperature sensor for a fuel cell according to claim 1, wherein the lead wire (2) is inserted and connected inside the base (4).
4. A temperature sensor for a fuel cell according to claim 3, wherein the base (4) is provided with a wire duct (6) for accommodating the wire (2).
5. A temperature sensor for a fuel cell according to claim 4, wherein the wire duct (6) is filled with glue for sealing the wire (2).
6. A temperature sensor for a fuel cell according to claim 1, wherein the base (4) is bonded to the circuit board (1) by glue.
7. A temperature sensor for a fuel cell according to claim 6, wherein the base (4) is provided with a first sealing groove (3) on a side close to the circuit board (1), and the glue fills the first sealing groove (3).
8. The temperature sensor for a fuel cell according to claim 1, wherein a flow path side plate (5) is provided above the flow path to be detected, and the flow path side plate (5) is fixedly connected with the base (4).
9. A temperature sensor for a fuel cell according to claim 8, wherein the flow path side plate (5) and the base (4) are bonded by glue.
10. A temperature sensor for a fuel cell according to claim 9, wherein a second sealing groove (8) is formed on a side of the flow path side plate (5) close to the base (4), and the glue fills the second sealing groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113216.3U CN219391143U (en) | 2023-01-18 | 2023-01-18 | Temperature sensor for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113216.3U CN219391143U (en) | 2023-01-18 | 2023-01-18 | Temperature sensor for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391143U true CN219391143U (en) | 2023-07-21 |
Family
ID=87169283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320113216.3U Active CN219391143U (en) | 2023-01-18 | 2023-01-18 | Temperature sensor for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391143U (en) |
-
2023
- 2023-01-18 CN CN202320113216.3U patent/CN219391143U/en active Active
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