CN216350937U - Conductivity sensor for hydrogen fuel system - Google Patents
Conductivity sensor for hydrogen fuel system Download PDFInfo
- Publication number
- CN216350937U CN216350937U CN202122151841.0U CN202122151841U CN216350937U CN 216350937 U CN216350937 U CN 216350937U CN 202122151841 U CN202122151841 U CN 202122151841U CN 216350937 U CN216350937 U CN 216350937U
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- Prior art keywords
- wall
- hydrogen fuel
- conductivity sensor
- clamping
- connecting seat
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- 239000000446 fuel Substances 0.000 title claims abstract description 27
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims 1
- 229920006362 Teflon® Polymers 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a conductivity sensor for a hydrogen fuel system, which comprises a cylinder, an electrode rod, a bushing and a connector, wherein the lower end of the cylinder is provided with a connecting seat, the connecting seat is of a hollow structure, the inner wall and the outer wall of the connecting seat are respectively provided with an internal thread and an external thread, and the connecting seat is in threaded connection with one end of the electrode rod through the internal thread; the barrel upper end is equipped with the position sleeve that equals with bush length, and the cover is established on the position sleeve outer wall the bush, the position sleeve upper end is equipped with the buckle ring, has evenly seted up a plurality of buckle grooves on the buckle ring, and the connector bottom is equipped with the end plate, and the end plate bottom is equipped with hollow structure's joint seat, joint seat diameter size and position sleeve inside diameter size looks adaptation, be equipped with the buckle piece with buckle groove matched with on the joint seat outer wall, realize that the buckle between connector and the barrel is connected to make the end plate bottom support and lean on at position sleeve top and bush top. The conductivity sensor has compact structure, is convenient to disassemble and assemble, and is suitable for a hydrogen fuel cooling system.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cell cooling systems, and particularly relates to a conductivity sensor for a hydrogen fuel system.
Background
As hydrogen fuel cell technology has matured, the use of hydrogen fuel cell technology in automobiles has increased. The design requirements for the cooling system of a hydrogen fuel cell are more stringent than for a conventional automobile due to the characteristics of the hydrogen fuel cell itself. The low conductivity of a cooling loop of the vehicle-mounted fuel cell must be kept in the operation process of the vehicle-mounted fuel cell, the insulation fault of the whole vehicle and the reduction of the efficiency of the fuel cell can be caused by the overhigh conductivity of the cooling liquid, and the like, so that the fuel cell and the whole vehicle can not normally operate and great potential safety hazards are generated, and therefore, a conductivity sensor is required to be installed in a hydrogen fuel system to monitor the conductivity of the cooling liquid in real time. The existing conductivity sensor has a complex structure, is inconvenient to disassemble and assemble, and cannot be adapted to a hydrogen fuel cooling system with high integration level.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model discloses a conductivity sensor for a hydrogen fuel system, which solves the problems that the conductivity sensor in the prior art has a complex structure and cannot be adapted to a hydrogen fuel cooling system.
The specific technical scheme is as follows:
a conductivity sensor for a hydrogen fuel system comprises a cylinder, an electrode rod, a bushing and a connector, wherein two circuit boards are arranged in an inner cavity of the cylinder, epoxy resin hard glue is filled in the inner cavity of the cylinder and used for protecting the circuit boards, a connecting seat is arranged at the lower end of the cylinder, the connecting seat is of a hollow structure, inner threads and outer threads are respectively arranged on the inner wall and the outer wall of the connecting seat, the outer threads of the connecting seat are used for being assembled on other parts, the connecting seat is in threaded connection with one end of the electrode rod through the inner threads, and the inner layer and the outer layer of the electrode rod are respectively connected with the two circuit boards through leads; the utility model discloses a clamping structure, including barrel, locating sleeve, connecting terminal, end plate, clamping seat, locating sleeve, connecting terminal, connecting sleeve, connecting sleeve, and sleeve, connecting sleeve, and sleeve, connecting, and sleeve, and.
Furthermore, the electrode rod is of a hollow structure, and a polytetrafluoroethylene insulating layer is arranged between the inner layer and the outer layer of the electrode rod.
Furthermore, a first sealing ring is arranged between the electrode rod and the inner wall of the upper end of the connecting seat.
Furthermore, a circle of accommodating groove is formed in the outer wall of the clamping seat, and a second sealing ring is arranged in the accommodating groove.
Further, the diameter of the lining is equal to that of the cylinder.
Furthermore, the inner diameter of the clamping ring is equal to that of the positioning sleeve, and a distance of 1-2 mm exists between the outer wall of the clamping ring and the inner wall of the lining.
The utility model has the beneficial effects that:
the conductivity sensor is compact in structure and convenient to disassemble and assemble, the lower end of the conductivity sensor is assembled with an external part in a threaded connection mode, the upper end connector is fixed by adopting a buckle structure, the adoption of a threaded mode is avoided, the internal lead is prevented from being broken in the process of screwing the thread, and the conductivity sensor is adaptive to a hydrogen fuel cooling system.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
Fig. 5 is a schematic view of a connection structure between the connection base and the cylinder in the present invention.
Fig. 6 is a top view of the connecting head of the present invention.
The electrode assembly comprises a cylinder body 1, a circuit board 11, a connecting seat 12, a positioning sleeve 13, a clamping ring 14, a clamping groove 141, an electrode rod 2, a polytetrafluoroethylene insulating layer 21, a first sealing ring 22, a lining 3, a connecting head 4, an electric connection terminal 41, an end plate 42, a clamping seat 43, a containing groove 431, a clamping block 432 and a second sealing ring 44.
Detailed Description
In order to make the technical scheme of the utility model clearer and clearer, the utility model is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the utility model falls into the protection scope of the utility model. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-6, a conductivity sensor for a hydrogen fuel system comprises a cylinder 1, an electrode rod 2, a bushing 3 and a connector 4, wherein two circuit boards 11 are arranged in an inner cavity of the cylinder 1 and used for detecting, amplifying and converting electrical signals and conductivity, epoxy resin hard glue is filled in the inner cavity of the cylinder 1 and used for protecting the circuit boards 11, the lower end of the cylinder 1 is provided with a connector 12, the connector 12 is of a hollow structure, inner and outer walls of the connector 12 are respectively provided with inner and outer threads, the outer thread of the connector 12 is used for being assembled on other parts, the connector 12 is in threaded connection with one end of the electrode rod 2 through the inner thread, the electrode rod 2 consists of an inner conductor and an outer conductor, and the inner layer and the outer layer of the electrode rod 2 are respectively connected with the two circuit boards 11 through leads; the utility model discloses a clamping structure, including barrel 1, bush 3, connecting seat, clamping ring, end plate 42, clamping seat 43, locating sleeve 13, two electrical terminals 41 are connected with two circuit boards 11 through the wire respectively, the end plate 4 is equipped with end plate 42, end plate 42 bottom is equipped with hollow structure's clamping seat 43, clamping seat 43 diameter size and locating sleeve 13 internal diameter size looks adaptation are equipped with on the outer wall of clamping seat 43 with buckle groove 141 matched with buckle piece 432, realize that the buckle between connector 4 and the barrel 1 is connected to make end plate 42 bottom support and lean on at locating sleeve 13 top and bush 3 top.
Further, the electrode rod 2 is of a hollow structure, and a polytetrafluoroethylene insulating layer 21 is arranged between the inner layer and the outer layer of the electrode rod 2.
Further, a first sealing ring 22 is arranged between the electrode rod 2 and the inner wall of the upper end of the connecting seat 12.
Further, a circle of accommodating groove 431 is formed in the outer wall of the clamping seat 43, and a second sealing ring 44 is arranged in the accommodating groove 431.
Further, the diameter of the bush 3 is equal to that of the cylinder 1.
Furthermore, the inner diameter of the snap ring 14 is equal to the inner diameter of the positioning sleeve 13, and a distance of 1-2 mm exists between the outer wall of the snap ring 14 and the inner wall of the bushing 3.
The assembling method comprises the following steps: the electrode rod 2 is a contact 2-pole electrode, a lead is respectively led out from the inner conductor and the outer conductor of the electrode rod 2 and is respectively connected with the two circuit boards 11, the top end of the electrode rod 2 is provided with a first sealing ring 22, and the top end of the electrode rod 2 is fixed with the internal thread of the connecting seat 12 of the cylinder 1; the second sealing ring 44 is firstly assembled in the accommodating groove 431 of the connector 4, then the bushing 3 is firstly assembled with the cylinder 1, and then the connector 4 is assembled with the cylinder 1 through the matching of the locking block 432 and the locking groove 141.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The conductivity sensor for the hydrogen fuel system is characterized by comprising a cylinder body (1), electrode rods (2), a lining (3) and a connector (4), wherein two circuit boards (11) are arranged in the inner cavity of the cylinder body (1), epoxy resin hard glue is filled in the inner cavity of the cylinder body (1), a connecting seat (12) is arranged at the lower end of the cylinder body (1), the connecting seat (12) is of a hollow structure, inner and outer threads are respectively arranged on the inner wall and the outer wall of the connecting seat (12), the outer threads of the connecting seat (12) are used for being assembled on other parts, the connecting seat (12) is in threaded connection with one end of each electrode rod (2) through the inner threads, and the inner layer and the outer layer of each electrode rod (2) are respectively connected with the two circuit boards (11) through leads; the clamping device is characterized in that a positioning sleeve (13) which is equal to the length of the bushing (3) is arranged at the upper end of the barrel (1), the bushing (3) is sleeved on the outer wall of the positioning sleeve (13), a clamping ring (14) is arranged at the upper end of the positioning sleeve (13), a plurality of clamping grooves (141) are uniformly formed in the clamping ring (14), two electric terminals (41) are arranged in the connector (4), the two electric terminals (41) are respectively connected with two circuit boards (11) through wires, an end plate (42) is arranged at the bottom of the connector (4), a clamping seat (43) of a hollow structure is arranged at the bottom of the end plate (42), the diameter size of the clamping seat (43) is matched with the inner diameter size of the positioning sleeve (13), clamping blocks (432) matched with the clamping grooves (141) are arranged on the outer wall of the clamping seat (43), and the clamping connection between the connector (4) and the barrel (1) is realized, and the bottom of the end plate (42) is abutted against the top of the positioning sleeve (13) and the top of the bushing (3).
2. The conductivity sensor for hydrogen fuel system according to claim 1, wherein the electrode rod (2) is a hollow structure, and a teflon insulating layer (21) is provided between the inner layer and the outer layer of the electrode rod (2).
3. The conductivity sensor for hydrogen fuel system according to claim 1, wherein a first sealing ring (22) is provided between the electrode rod (2) and the inner wall of the upper end of the connecting socket (12).
4. The conductivity sensor for hydrogen fuel system according to claim 1, wherein the outer wall of the snap seat (43) is provided with a circle of accommodating groove (431), and the accommodating groove (431) is provided with a second sealing ring (44).
5. A conductivity sensor for a hydrogen fuel system according to claim 1, wherein the liner (3) has a diameter equal to the diameter of the cylinder (1).
6. The conductivity sensor for hydrogen fuel system according to claim 5, wherein the inner diameter of the snap ring (14) is equal to the inner diameter of the positioning sleeve (13), and there is a distance of 1-2 mm between the outer wall of the snap ring (14) and the inner wall of the liner (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122151841.0U CN216350937U (en) | 2021-09-07 | 2021-09-07 | Conductivity sensor for hydrogen fuel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122151841.0U CN216350937U (en) | 2021-09-07 | 2021-09-07 | Conductivity sensor for hydrogen fuel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216350937U true CN216350937U (en) | 2022-04-19 |
Family
ID=81169447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122151841.0U Active CN216350937U (en) | 2021-09-07 | 2021-09-07 | Conductivity sensor for hydrogen fuel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216350937U (en) |
-
2021
- 2021-09-07 CN CN202122151841.0U patent/CN216350937U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 225000 7, No.8, Yangzhou Science Park Road, Yangzhou City, Jiangsu Province Patentee after: Jiuchang new energy technology (Yangzhou) Co.,Ltd. Country or region after: China Patentee after: Hebei Shichang Auto Parts Co.,Ltd. Address before: 225000 7, No.8, Yangzhou Science Park Road, Yangzhou City, Jiangsu Province Patentee before: Jiuchang new energy technology (Yangzhou) Co.,Ltd. Country or region before: China Patentee before: HEBEI SHICHANG AUTO PARTS CO.,LTD. |