JP6964483B2 - Detachable brake oil boiling point detector - Google Patents

Description

The present invention relates to a brake oil boiling point detector, and more particularly to a removable brake oil boiling point detector.

As shown in FIG. 8, the conventional brake oil boiling point detector is composed of a measuring device 81 and a measuring rod 82. A heater and a thermometer (not shown) are internally provided in the measuring rod 82, the measuring rod 82 is immersed in the brake oil to be measured, and the heater oil heats the brake oil A until it boils, and the thermometer is used. Measure the boiling point with, and determine whether or not the brake oil to be measured has deteriorated.

However, in the above-mentioned detector, the measuring rod 82 is fixed to the measuring device 81 and cannot be separated, and when the measuring rod 82 is used, it is easily damaged by contact with the high temperature brake oil. Had a problem that maintenance was not easy.

Further, the above-mentioned detector is affected by noise and thermal energy generated when the electronic components inside the measuring device 81 are operated, or is affected by the temperature of the external environment, so that the accuracy of the detected value is lowered. There was also a risk that it would end up.

As shown in FIG. 9, another conventional brake oil boiling point detector has a handle 91 and a detection rod 92 connected perpendicularly to the handle 91. A mechanical thermometer 93 is attached to the handle 91. The thermometer 93 has a probe 931 extending into the detection rod 92. A heater 95 connected to the motherboard 94 is provided in the detection rod 92.

However, since the probe 931 and the thermometer 93 cannot be removed and the heater 95 and the motherboard 94 are fixed and cannot be separated, the detection rod 92 cannot be removed from the handle 91, and the volume of the packaging material is large. In addition, it was not easy to remove the detection rod 92 and replace the heater 95.

Further, the mechanical thermometer 93 of the detector does not interfere with noise, but the accuracy of measuring the temperature is lower than that of the electronic temperature sensor.

In view of this problem, a technique for improving the boiling point detector of the conventional brake oil has been required.

A first object of the present invention is to provide a removable brake oil boiling point detector that is easy to put on and take off, reduces packaging materials, and is easy to maintain.
A second object of the present invention is a removable brake that is easily affected by noise and thermal energy generated when an electronic component operates, is easily affected by the temperature of the external environment, and has high detection accuracy. The purpose is to provide a boiling point detector for oil.
A third object of the present invention is to provide a removable brake oil boiling point detector that prevents the oil gas from which the brake oil is heated and evaporated from adversely affecting the electronic components in the grip portion.

In order to solve the above problems, according to the first aspect of the present invention, a removable brake oil boiling point detector including a grip portion and a detection portion connected to the grip portion. An accommodation space is formed in the grip portion, a first circuit board is provided in the accommodation space, and the first circuit board has a switch controlled outside the grip portion. The detection unit has a heater, the grip portion has a connection portion on one side, and the detection unit has an assembly end and a detection end extending in a direction away from the assembly end. The assembly end is detachably connected to the connection portion, the detection end has the heater and the first temperature sensor, and each of the heater and the first temperature sensor is via a conducting wire. The second end is connected to the first end opening formed at the assembly end, and the accommodation space of the grip portion is electrically connected to the first circuit board at a position adjacent to the connection portion. A circuit board is provided, the second circuit board and the first circuit board are separated from each other, and a second end port is formed on one side surface of the second circuit board toward the connection portion. The first end opening is detachably connected to the second end opening, and when the detection unit and the grip portion are connected, the first end opening and the second end opening are connected to each other. Provided is a removable brake oil boiling point detector, which is coupled at a connection point between the assembly end and the connection portion.

Both ends of the connecting portion are hollow, the grip portion has a head, a convex portion and the connecting portion are provided on one side of the head, and the convex portion is the connecting portion. A chamber that communicates with the accommodating space and the connecting portion is formed in the convex portion, and the second circuit board is provided in the chamber so that the accommodating space and the connecting portion communicate with each other. It is preferably closed.

A second temperature sensor, a temperature compensating member, and a temperature signal amplification member are provided on the side surface of the second circuit board far from the connection portion, and the temperature detected by the first temperature sensor is the second. The second temperature sensor on the second circuit board detects the temperature on the second circuit board, and the first temperature sensor and the second temperature sensor detect the temperature on the second circuit board. It is preferable that the temperature compensating member performs temperature compensation based on the detected temperature difference, the temperature signal is increased by the temperature signal amplifying member and transmitted to the first circuit board, and the detection result is displayed on the display. ..

The detection unit is composed of a connector pipe, a plug, and an outer cover. The connector pipe is a hollow tubular body having hollow ends, and an assembly end is provided at one end of the connector pipe. It has a stretched portion of 1 and a second stretched portion extending in a direction opposite to that of the first stretched portion, and an engaging piece is projected on the first stretched portion of the plug. The first extending portion is mounted in the connector pipe, and the engaging piece and the engaging groove of the connector pipe are fitted and positioned, and the first extending portion is placed on the second extending portion of the stopper. A copper pipe is fitted, the copper pipe has an opening and a first heating space inside, the outer cover has a hollow shell shape, and the connector pipe is fitted to the plug. And it is preferable to cover the copper tube to form the detection end.

A second heating space is formed between the outer cover and the copper tube, and communicates with the first heating space and the second heating space on the second extending portion of the plug. It is preferable that the notch to be formed is recessed.

The plug has a perforation penetrating in the axial direction, the perforation is provided with the first temperature sensor communicating with the first heating space, and the lead wire of the first temperature sensor is the same. It is connected to the first end opening through a perforation, and two conductive tubes are installed in parallel at intervals in the plug, and the first extending portion and the first extending portion are provided at both ends of the two conductive tubes. Each of the second extending portions is extended, and also has a first end portion extending toward the connector pipe and a second end portion extending in a direction away from the connector pipe. The first end of the two conductive tubes is connected to the first end port provided at the assembly end by the conductor of the heater, and is connected to the second end of the two conductive tubes. Is preferably fixed by inserting the two attachment ends of the heater.

The removable brake oil boiling point detector of the present invention has the following effects (1) to (3).
(1) Easy to put on and take off, reduce packaging materials, and easy maintenance.
(2) It is easily affected by noise and thermal energy generated when electronic components are operated, and is easily affected by the temperature of the external environment, and its detection accuracy is high.
(3) Prevents the oil gas evaporated by heating the brake oil from adversely affecting the electronic parts in the grip portion.

FIG. 1 is an exploded perspective view showing a removable brake oil boiling point detector according to an embodiment of the present invention. FIG. 2 is a perspective view showing a removable brake oil boiling point detector according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is an enlarged cross-sectional view taken along the line BB of FIG. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. FIG. 6 is an assembly drawing showing a grip portion and a detection portion of a removable brake oil boiling point detector according to an embodiment of the present invention. FIG. 7 is an explanatory diagram of a usage state of a removable brake oil boiling point detector according to an embodiment of the present invention. FIG. 8 is a perspective view showing the structure of a conventional brake oil boiling point detector. FIG. 9 is a structural diagram showing another conventional brake oil boiling point detector.

See FIGS. 1 to 3. As shown in FIGS. 1 to 3, the removable brake oil boiling point detector according to the embodiment of the present invention includes a grip portion 11, a detection unit 31 connected perpendicularly to the grip portion 11, and a detection unit 31. It consists of.

The grip portion 11 is configured such that the first housing 111 and the second housing 112 are butted against each other. A storage space 12 is formed in the grip portion 11. A first circuit board 13 is provided in the accommodation space 12. The first circuit board 13 has a switch 14. The user can be controlled by the switch 14 outside the first housing 111 of the grip portion 11. A power supply line 15 is electrically connected to the first circuit board 13. The grip portion 11 has a head portion 16. The head portion 16 has a convex portion 17 and a connecting portion 18 having hollow ends adjacent to the convex portion 17 on one side and a display 19 on the other side. A chamber 171 communicating with the accommodating space 12 and the connecting portion 18 is formed in the convex portion 17. Chamber 171 has a second circuit board 21 that is electrically connected to the first circuit board 13. The distance between the second circuit board 21 and the first circuit board 13 is a distance d, the contour of the second circuit board 21 matches the chamber 171 and closes the communication between the accommodation space 12 and the connection portion 18. do. A second end port 22 is formed on one side surface 211 of the connection portion 18 of the second circuit board 21, and a second temperature sensor 23, a temperature compensation member 24, and a temperature signal amplification member are formed on the other side surface 212. 25 is provided.

The detection unit 31 is composed of a connector pipe 32, a plug 33, and an outer cover 34. The connector pipe 32 has a hollow tubular shape having hollow ends at both ends, and is fitted to the assembled end 35 of the connecting portion 18 in a detachable manner and is fixed by a screwing member 47. The stopper 33 has a first stretched portion 331 and a second stretched portion 332 extending in the direction opposite to the first stretched portion 331. An engaging piece 333 is projected onto the first extending portion 331, and the first extending portion 331 of the plug 33 is mounted in the connector pipe 32, and the engaging groove of the engaging piece 333 and the connector pipe 32 is formed. 321 is fitted and positioned. A copper tube 36 is fitted on the second extending portion 332 of the stopper 33. The copper tube 36 has an opening 361 and a first heating space 362 inside. The outer cover 34 has a hollow shell shape, and is fitted with a connector pipe 32 to cover the stopper 33 and the copper pipe 36, and constitutes a detection end 37 extending in the direction opposite to the assembly end 35.

See FIG. As shown in FIG. 4, a second heating space 341 is formed between the outer cover 34 and the copper tube 36. The outer cover 34 has a first through hole 342 and a second through hole 343. The first through hole 342 and the second through hole 343 communicate with the second heating space 341, respectively, and the first through hole 342 is located at one end of the connector pipe 32 away from the outer cover 34. In the second through hole 343, the outer cover 34 is located at a height close to the plug 33. In the second extending portion 332 of the stopper 33, a notch 334 communicating with the first heating space 362 and the second heating space 341 is recessed so that the oil gas can recirculate.

See FIG. As shown in FIG. 5, two conductive tubes 38 are installed in parallel in the plug 33 at intervals. A first extension portion 331 and a second extension portion 332 are extended at both ends of the two conductive tubes 38, and a first end portion 381 extending toward the connector pipe 32 and a connector pipe 32 are extended. It has a second end portion 382 extending in a direction away from the two conductive tubes 38, the first end portion 381 of the two conductive tubes 38 is connected via a conducting wire 41, and the first end port 42 formed at the assembly end 35 is connected. Will be done. The first end port 42 is connected to the second end port 22 of the second circuit board 21, and the second end 382 of the two conductive tubes 38 is connected to the heater 43. The first end port 42 and the second end port 22 of the present embodiment are plugs and plug receivers of commercially available connectors. In this embodiment, the heater 43 has two insertion ends 44, each of which is inserted and fixed in the second end 382 of the two conductive tubes 38. Since the conductor 41 is inserted into and fixed to the first end 381 of the two conductive tubes 38, the heater 43 can be quickly attached. The stopper 33 has a perforation 335 that penetrates in the axial direction. The perforation 335 has a first temperature sensor 45 communicating with the first heating space 362, and the first end port 42 is connected via a conducting wire 46.

See FIG. As shown in FIG. 6, the detection unit 31 is fitted to the connection portion 18 of the grip portion 11 in a detachable manner via the assembly end 35. Each of the first end port 42 and the second end port 22 is a plug and a plug receiver, and when the detection unit 31 and the grip portion 11 are connected, the first end port 42 and the second end port 22 are connected to each other. It is connected at the connection point between the pipe 32 and the connection portion 18. Therefore, if the heater or other electronic components in the detection unit 31 are damaged, the detection unit 31 and the connection unit 18 can be replaced with a new detection unit 31 simply by removing the first end port 42 and the second end port 22. be able to. Further, when not packaging / transporting or using, the detection unit 31 and the grip portion 11 can be separated to reduce the volume and the occupied space.

See FIG. 7. As shown in FIG. 7, when the present invention is actually used, when the detection unit 31 is vertically infiltrated into the brake oil A, the brake oil A becomes the first through hole 342 and the second through hole 342 of the outer cover 34. After entering the second heating space 341 through the through hole 343, the first heating space 362 is entered through the opening 361 of the copper tube 36. When the switch 14 is pressed, the heater 43 heats the brake oil A in the first heating space 362, and the first temperature sensor 45 measures the heated temperature until the brake oil A boils, and the second circuit. It is transmitted to the board 21. The second temperature sensor 23 on the second circuit board 21 detects the temperature on the second circuit board 21, and the first temperature sensor 45 and the second temperature sensor 23 pass through the temperature compensating member 24. Temperature compensation is performed based on the detected temperature difference, the influence of the temperature of the external environment on the temperature of the brake oil is eliminated, the actual temperature of the brake oil is converted into a temperature signal, and then the temperature signal is output by the temperature signal amplification member 25. It is amplified and transmitted onto the first circuit board 13, and the detection result is displayed on the display 19.

In the present invention, each of the second temperature sensor 23, the temperature compensating member 24, and the temperature signal amplification member 25 is provided with the first circuit board 13 separated from the second circuit board 21 by a distance d. The main electronic components on the first circuit board 13 affect the temperature determination of the second temperature sensor 23, the temperature compensating member 24, and the temperature signal amplification member 25 by the noise and thermal energy generated when the first circuit board 13 operates. However, the detection accuracy can be improved.

Further, the second circuit board 21 is provided in the chamber 171 of the grip portion 11 and closes the communication between the accommodation space 12 and the connection portion 18. When the oil gas generated by heating and boiling rises to the connection portion 18 in the connector pipe 32, it is hindered by the second circuit board 21 and prevents the oil gas from damaging the main electronic components on the first circuit board 13. .. Since each of the second temperature sensor 23, the temperature compensation member 24, and the temperature signal amplification member 25 is installed on the other side surface 212 far from the connection portion 18 of the second circuit board 21, oil gas is detected. It is possible to prevent the accuracy from being affected.

11 Grip 12 Storage space 13 First circuit board 14 Switch 15 Power line 16 Head 17 Convex 18 Connection 19 Display 21 Second circuit board 22 Second end 23 Second temperature sensor 24 Temperature compensation member 25 Temperature signal amplification member 31 Detection unit 32 Connector pipe 33 Plug 34 Outer cover 35 Assembly end 36 Copper tube 37 Detection end 38 Conductive tube 41 Conductor 42 First end port 43 Heater 44 Insertion end 45 First temperature sensor 46 Conductor 47 Screwing member 81 Measuring device 82 Measuring rod 91 Handle 92 Detection rod 93 Thermometer 94 Motherboard 95 Heater 111 First housing 112 Second housing 171 Chamber 211 Side surface 212 Side surface 321 Engagement groove 331 First extension portion 332 First 2 Stretched portion 333 Engagement piece 334 Notch 335 Perforation 341 Second heating space 342 First through hole 343 Second through hole 361 Opening 362 First heating space 381 First end 382 Second end Part 931 Probe A Brake oil d Distance

Claims (6)

A removable brake oil boiling point detector comprising a grip portion and a detector unit connected to the grip portion.
An accommodation space is formed in the grip portion, a first circuit board is provided in the accommodation space, and the first circuit board has a switch controlled outside the grip portion. The detector has a heater and
The grip portion has a connection portion on one side, the detection portion has an assembly end and a detection end extending in a direction away from the assembly end, and the assembly end is attached to and detached from the connection portion. Possiblely connected, the detection end has the heater and a first temperature sensor, and each of the heater and the first temperature sensor is formed at the assembly end via a lead wire. A second circuit board electrically connected to the first circuit board is provided at a position adjacent to the connection portion in the accommodation space of the grip portion, which is connected to the end port of the first circuit board. A system in which the circuit board and the first circuit board are separated from each other, a second end port is formed on one side surface of the second circuit board toward the connection portion, and the first end port is detachable. When the detection unit and the grip portion are connected to the second end port, the first end port and the second end port are connected to the assembled end and the connection portion. Detachable brake oil boiling point detector, characterized by being bonded in place. Both ends of the connection are hollow.
The grip portion has a head and
A convex portion and the connecting portion are provided on one side of the head.
The convex portion is adjacent to the connecting portion and is adjacent to the connecting portion.
A chamber communicating with the accommodation space and the connection portion is formed in the convex portion.
The second circuit board is provided in the chamber.
The removable brake oil boiling point detector according to claim 1, wherein the communication between the accommodation space and the connection portion is closed. A second temperature sensor, a temperature compensation member, and a temperature signal amplification member are provided on the side surface of the second circuit board far from the connection portion.
The temperature detected by the first temperature sensor is transmitted to the second circuit board, and the temperature is transmitted to the second circuit board.
The second temperature sensor on the second circuit board detects the temperature on the second circuit board, and is based on the temperature difference detected by the first temperature sensor and the second temperature sensor. The first aspect of claim 1, wherein the temperature compensating member performs temperature compensation, the temperature signal amplifying member increases the temperature signal, transmits the temperature signal to the first circuit board, and displays the detection result on the display. Detachable brake oil temperature detector. The detection unit is composed of a connector pipe, a stopper, and an outer cover.
The connector pipe is a hollow tubular shape having hollow ends, and an assembly end is provided at one end of the connector pipe. It has an extended second stretched portion and
An engaging piece is projected on the first extending portion, and the first extending portion of the plug is mounted in the connector pipe to form an engaging groove between the engaging piece and the connector pipe. Is fitted and positioned, and a copper pipe is fitted on the second extending portion of the plug, and the copper pipe has an opening and a first heating space inside. The removable brake oil according to claim 1, wherein the outer cover has a hollow shell shape, and the connector pipe is fitted to the outer cover to cover the stopper and the copper pipe to form the detection end. Boiling detector. A second heating space is formed between the outer cover and the copper tube.
The detachable according to claim 4, wherein a notch communicating with the first heating space and the second heating space is recessed on the second extending portion of the stopper. Brake oil boiling point detector. The stopper has perforations that penetrate in the axial direction.
The perforation is provided with the first temperature sensor communicating with the first heating space.
The conductor of the first temperature sensor is connected to the first end port through the perforation, and two conductive tubes are installed in parallel at intervals in the plug.
The first stretched portion and the second stretched portion are respectively extended at both ends of the two conductive tubes, and the first end portion extending toward the connector pipe and the connector pipe The first end of the two conductive tubes has a second end extending in a distant direction, and the first end of the two conductive tubes is provided at the assembly end by the lead wire of the heater. 4. Detachable according to claim 4, wherein the two attachment ends of the heater are inserted and fixed to the second end of the two conductive tubes. Brake oil boiling point detector.

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