JP7232671B2 - Measuring device - Google Patents

Description

The present invention relates to a measuring device used to measure the flow velocity and flow rate of a fluid such as a combustible gas, and in particular, maintains the airtightness of a sealed container when sending a signal from the fluid flow section to the power display control board section. The present invention relates to a measuring device provided with a relay connector for extracting a sensor signal inside a sensor, that is, a so-called hermetic connector.

2. Description of the Related Art Conventionally, various techniques have been proposed for measuring devices for measuring fluids, such as smart gas meters. For example, a pair of ultrasonic transducers arranged upstream and downstream of a measurement channel through which a fluid to be measured flows, a timing means for measuring the ultrasonic wave propagation time between the ultrasonic transducers, and the ultrasonic wave propagation and calculating means for calculating the flow velocity and/or flow rate of the fluid to be measured based on time. A measuring device is known (see Patent Document 1, for example).

Further, there is known a technique in which the timing means and the flow rate detecting means are provided outside the main flow path and electrically connected to the ultrasonic transducer through a relay terminal provided in the main flow path while ensuring airtightness. The relay terminal consists of a pin fixed in the center with a specified distance from the flange with a glass hermetic or rubber, or a land provided on both sides of a through-hole printed circuit board. It is possible to electrically connect while ensuring the property (see Patent Document 2, for example).

Japanese Unexamined Patent Application Publication No. 2011-2269 Japanese Patent No. 4415662

In the technique of Patent Document 1, even if a combustible gas or a corrosive gas that causes malfunction exists in the surroundings, the terminal portion of the ultrasonic transducer, the timing means, and the arithmetic means are protected from these gas areas. It was a technology that could be expected to measure the fluid to be measured stably because it was cut off.
Even in the technique disclosed in Patent Document 1, a detection means such as a sensor arranged on the fluid side isolated from the atmosphere and a device (for example, a display device) existing on the atmosphere side are connected by a hermetic connector or the like in a sealed interior. In order to connect the signals of various sensors to a device that exists on the atmospheric side (for example, a power display control board or a display device), a connector (a so-called hermetic connector) that cuts off the gas side and the atmospheric side is used for connection. is necessary.

In the installation environment of the measuring device, if there is a combustible gas within the explosive limit range or a corrosive gas that can cause failure as the fluid, the gas flow path timing means, calculation means, Because the terminals of the sonic transducer are exposed, contact with combustible gas may cause an explosion, or contact with corrosive gas may cause corrosion and malfunction. is.

In Patent Document 2, the flow velocity of a measurement flow path provided in a part of a small flow path is measured, and the total flow rate of the main flow path is calculated by calculating, so the measurement flow path does not increase in size, and the ultrasonic transducer is used. There is no decrease in sensitivity and no increase in current consumption. The timing means and the flow rate detecting means are provided outside the main flow path, and are electrically connected via the ultrasonic transducer and the relay terminal provided in the main flow path. It is expected that there will be no leakage even if an internal pressure of about 0.1 MPa is applied.

These hermetic connectors are connected to an insulated terminal plate (hermetic plate) via lead wires, and the lead wires are attached to terminal pins. is sealed with a sealing material or the like.

However, conventional hermetic connectors are configured as shown in FIGS. 11 and 12. FIG. Here, FIGS. 11 and 12 show a conventional example, FIG. 11 is an explanatory diagram showing the connection between the sensor (measurement means 110) and the display (display means 120) of the measurement device, and FIG. FIG. 10 is a plan view showing a joint state with a pin 103;
As shown in FIG. 11, a measuring means 110 equipped with a sensor for measuring the flow velocity of the measurement channel through which the fluid to be measured flows and converting it into a signal, and an operation for calculating the flow velocity and the flow rate from the signal measured by this measuring means 110. When connecting to the display means 120 via means, it is connected to the display means 120 or the like provided on the atmosphere side via a relay connector 130 as a sealing means. Note that the calculation means for calculating the flow velocity and flow rate may be arranged on the display means 120 side.
As shown in FIG. 12, lead wires 101 and terminal pins 103 are connected by crimp terminals 102 . That is, the crimp terminal 102 holds the lead wire 101 on one side and is configured to be connected to the terminal pin 103 at one end of the lead wire 101. The terminal pin 103 is provided on the terminal plate 105 (not shown). It is adapted to be inserted and held in the through hole.

At this time, a sealing material is interposed in the through hole of the terminal plate 105 so that the terminal pin 103 is in close contact with the through hole when the terminal pin 103 is inserted. The terminal plate 105 is configured so that it can be connected to the atmosphere side and the sealed side. A connector terminal 106 for insertion is provided at the other end of the lead wire 101 . A terminal pin 103 is attached to the crimp terminal 102 by welding or the like, and the crimp terminal 102 is used to connect the lead wire 101 .

However, in order to make the connector portion as compact as possible, the terminal plate 105 and the crimp terminal 102 in the connector should not be increased in height of the crimp terminal 102, the terminal pin 103, and the terminal plate 105 that hold the lead wire 101. are brought closer to each other, and the terminal pin 103 is bent so as to be brought closer to the terminal plate 105 .
Also, in order to directly connect the crimp terminal 102 to which the lead wire 101 is attached or the core wire of the lead wire to the terminal pin 103, soldering or the like has conventionally been used for connection. However, when soldering is used for connection, it is necessary to apply flux and solder, so there is a large variation in quality, and it is difficult to manage stable connection.

For this compactness, it is preferable to bend the terminal pins to bring them closer to the terminal plate. However, if a terminal pin is bent at 90 degrees, for example, when a plurality of terminal pins such as 4 pins or 6 pins are arranged side by side, the respective terminal pins will come close to each other, making it extremely difficult to weld the terminal pins and the terminal plate. Welding is practically impossible.

If the pitch between the terminal pins is increased in order to avoid interference between the terminal pins, the terminals themselves become large, making it impossible to form them compactly. In order to avoid such a state, it is conceivable to bend the terminal pin at 90 degrees and to change the directions in which the terminal pins face. There is a problem that the welding position with the pin is not constant and it becomes difficult to perform welding automatically.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. for the purpose. Another object of the present invention is to provide a measuring device equipped with a relay connector, which has a compact connector part to be connected, can easily grasp the crimp terminal by a robot or the like, and can easily automate the welding between the pins of the connector part and the terminal plate. to provide.

According to the measuring device of the present invention, the flow rate detection means for detecting the flow rate of the flow path through which the fluid flows, the display means for displaying the information detected by the flow rate detection means, the flow rate detection means and the display and a relay terminal connecting a signal line disposed on the fluid side and a signal line disposed outside the fluid, wherein the relay terminal is: A plurality of through holes are formed in the plate, and terminal pins are inserted and fixed in the through holes via a sealing material to be airtightly closed, and signal lines arranged outside the fluid are connected to the terminal pins. The problem is solved by inserting the plate obliquely at an angle of 20 to 75 degrees with respect to the surface of the plate through the attached crimp terminal.

As described above, the terminal pin is inserted and fixed to the plate (terminal plate) so that it is inclined with respect to the surface of the plate at an angle ranging from 20 degrees to 75 degrees. , the height of the terminal pin from the plate can be suppressed, resulting in a compact design. In addition to the distance between the terminal pin and the plate, bending the terminal pin in the range of 20 to 75 degrees with respect to the plate makes the lead wire oblique, so that the height can be suppressed.

It is preferable to add a configuration in which a wireless communication antenna is formed on at least one of the back side of the case of the battery that drives the display means and the back side of the case of the communication device that accompanies the measurement device.
With this configuration, it is possible to form the wireless communication antenna inconspicuously without providing a separate space for forming the wireless communication antenna.

At this time, a plurality of the terminal pins are arranged, the interval between adjacent terminal pins in the arrangement of the terminal pins is at least 5 mm, and at least the through holes of the plate are holes of iron alloy. and glass is preferably used as the sealing material.
In this way, since there is an interval of at least 5 mm between adjacent terminal pins, if the perimeter of the through hole formed in the plate (terminal plate) is sealed with glass, some heat will cause Even if the glass melts and the terminal pins fall down, the possibility of contact between adjacent terminal pins can be reduced.
In other words, when automating welding, the crimp terminal holding multiple terminal pins can be grasped by a robot, and the terminal pins can be inserted all at once into the through-holes of the plate. , the through hole and the terminal pin can be welded together, improving efficiency.

Further, the crimp terminal includes a terminal pin presser for pressing the terminal pin, a lead wire placement section for placing the lead wire, and a covering section presser for pressing the covering section of the lead wire placed in the lead wire placement section, It is preferable that the lead wire and the end of the terminal pin are connected by the crimp terminal.
Further, the crimp terminal has a holding portion that holds the terminal pin, a connection portion that is connected to the holding portion, and a lead wire holding portion that holds the lead wire via the connection portion. It is preferable that the terminal pin and the lead wire are connected with each other.

With this configuration, when the terminal pin connected to the lead wire and the through hole are welded, the terminal pin can be easily inserted into the through hole of the plate and the welding can be automatically performed using an automatic welding device. becomes possible.
Further, since at least a portion of the connecting portion is formed from a flat surface, the flat connecting portion can be easily held by a robot, which is optimal for automation.

At this time, it is preferable that the through hole of the plate and the terminal pin are joined by welding. As a result, it is possible to eliminate the inconvenience caused by soldering, for example, the difficulty in managing stable connection due to the large variation in quality due to flux or soldering work.

The measuring device of the present invention can stably measure the fluid to be measured in any measuring environment. i.e.
・The height of the terminal pin from the plate can be suppressed, making it compact. In addition to adjusting the distance between the terminal pin and the plate, the terminal pin is arranged and fixed at an angle of 20 to 75 degrees with respect to the plate. can.
The area around the hole formed in the plate is sealed with glass, and even if the glass melts due to some heat and the terminal pin falls down, the possibility of contact with the adjacent terminal can be reduced. In the case of soldering, it is possible to prevent quality variations due to work and to manage stable connections.
・When welding the terminal pin to which the lead wire is connected and the through-hole of the plate, since the crimp terminal has at least a flat portion, it is easy to automate the insertion and welding of the pin into the through-hole using an automatic welding device. becomes possible.
- It is possible to form the wireless communication antenna inconspicuously without separately providing a space for forming the wireless communication antenna.

It is a perspective view explaining the state which connected the crimp terminal which attached the terminal pin and the lead wire which are used for the measuring device of this invention to the plate. It is a perspective view explaining joining with a crimp terminal, a terminal pin, and a lead wire. It is a top view of a terminal pin. FIG. 4 is a partial perspective view showing a joint state between a terminal pin and a crimp terminal; FIG. 4 is a partial perspective view showing a joint state between a terminal pin and a crimp terminal; FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; FIG. 4 is a partial perspective view illustrating a state in which the harness, crimp terminals, and terminal pins are connected to a plate (terminal plate); FIG. 8 is a perspective view similar to FIG. 7 showing another example; It is a top view explaining the state which connected the harness, the crimp terminal, and the terminal pin to the plate (terminal board). It is explanatory drawing which shows connection with the sensor and display of a measuring device. FIG. 11 is an explanatory diagram similar to FIG. 10 showing a conventional example; FIG. 10 is an explanatory diagram similar to FIG. 9 showing a conventional example;

An embodiment of the present invention will be described below with reference to the drawings. 1 to 10 relate to the present invention, FIG. 1 is a perspective view illustrating a state in which a crimp terminal having a terminal pin and a lead wire attached thereto is connected to a plate, and FIG. 2 is a crimp terminal, a terminal pin and a lead wire. FIG. 3 is a plan view of the terminal pin, FIG. 4 is a partial perspective view showing the joint state between the terminal pin and the crimp terminal, and FIG. 5 is a partial perspective view showing the joint state between the terminal pin and the crimp terminal. 6 is a partial cross-sectional view of a joint portion between a terminal pin and a crimp terminal; FIG. 7 is a partial perspective view illustrating a state in which a harness, a crimp terminal, and a terminal pin are connected to a plate (terminal plate); FIG. 8 is another example. 7 is a perspective view similar to FIG. 7, FIG. 9 is a plan view for explaining the state in which the harness, crimp terminals and terminal pins are connected to a plate (terminal plate), and FIG. 10 shows the connection between the sensor and the display of the measuring device It is an explanatory diagram.

The flowmeter includes, for example, a volumetric flowmeter, a mass flowmeter, a differential pressure flowmeter, and the like. Volumetric flowmeters measure the number of times a given volume of fluid is delivered, and include rotary piston, roots, and gear type volumetric flowmeters. A mass flowmeter measures a physical quantity proportional to the mass of the fluid that has passed through it, and there are, for example, calorific type, differential pressure type, and momentum type mass flowmeters. A differential pressure type flowmeter is a device in which a narrowed portion is provided in a flow channel and the flow rate is measured by measuring the pressure difference between both sides thereof. In addition, float meters, electromagnetic flow meters, ultrasonic flow meters, thermal flow meters, impeller flow meters, methods using weirs, salt water concentration methods, measuring the flow velocity and multiplying it by the cross-sectional area to measure indirectly methods are known. Moreover, various types of sensors can be used according to the object to be measured, and well-known technologies such as a liquid flow sensor and a gas flow sensor are used.

The present invention, as shown in FIG. , calculating means for calculating the flow rate (in this example, the calculating means is on the measuring means 10 side, but it may be arranged on the display means 20 side); It is a measuring device connected via a relay connector 30 to a display means 20 provided on the atmosphere side and a power unit (not shown) (power supply, battery, etc.). The relay connector 30 hermetically seals the measuring means and computing means arranged on the airtight side and isolates them from the atmosphere, but as described above, the computing means may be arranged on the atmosphere side.

As a result, even if combustible gas or corrosive gas that causes malfunction is present in the surroundings, the terminals, measuring means, and computing means can be Since it is cut off from the air side, it is possible to stably measure and send the signal to the device on the atmospheric side.

A gas meter will be used as an example of the measuring device according to the present embodiment. As outlined in FIG. I have it. That is, a sensor is arranged as a flow rate detecting means at a predetermined position such as a gas pipe (not shown), which is a flow path, where the gas, which is a fluid, does not affect the fluid.

A sensor detects the flow rate of the gas flowing through the gas pipe, the information (signal) detected by this sensor is calculated by a calculation means (not shown) arranged on the outside air side, and the result calculated by this calculation means is displayed on the display means 20. is configured to display in In other words, information (signal) from a sensor arranged in a flow path cut off from the outside air is connected to the display means 20 that can be visually recognized on the outside air side by a signal line (lead wire).

Here, well-known techniques are used for the calculation means and the display means. For example, information (signal) obtained by a display panel as display means and a sensor is calculated by a CPU (microcomputer) or the like via an interface, output to a display device, output to the outside via an output interface, etc. technology is used.

In short, the gas meter GM, which is a measuring device according to the present embodiment, includes a flow rate detection means 10 having a sensor or the like arranged on the flow path side (airtight) isolated from the outside air, and the flow rate detection means 10 By transmitting the detected signal to the outside (atmosphere side) through a signal wire (lead wire), it is connected to a display means 20 having a calculation means (not shown), and displays the current and past history such as flow rate and usage amount. and a display means for displaying. A signal detected by the flow rate detecting means 10 is sent to the outside (atmosphere side) through a signal line (lead line). The signal line is connected to display means 20 having a calculation means (not shown). The display means 20 (including drive means for driving the display device) is connected to the power source of the measuring device including a battery. This power source can be integrated with the display means 20 or can be separate.

That is, since the gas flowing through the flow path reacts with the outside air or the like when it comes into contact with the outside air, the flow rate detecting means (sensor) arranged in the flow path is arranged in a sealed manner in a state of being cut off from the outside air. For this reason, the signal line connected to the sensor arranged on the fluid side and the signal line connecting the display device arranged outside the fluid are relay connectors that block the sealed portion from the outside air. is configured to connect by

As shown in FIG. 7, the relay connector 30 of this embodiment is composed of a rectangular planar plate 31, terminal pins 32, and lead wires 33. As shown in FIG. A plurality of through-holes 31a (four places in FIG. 7) are formed at predetermined positions in a rectangular planar plate 31, and the interval P (pitch) between the through-holes 31a is set so as to be inserted into the through-holes 31a. The interval P (pitch) between the terminal pins 32 is at least approximately 5 mm.
In this embodiment, a hole (through hole) 31a is opened in an iron plate 31, a glass ball is melted in the through hole 31a, and a terminal pin 32, which is a contact pin, is inserted into the through hole 31a to form a sealing material 31b. glass beads are inserted to ensure a 100K Pascal seal.

As shown in FIG. 3, the terminal pin 32 is a straight pin, and has a head portion 32b having the same diameter as the body portion 32a at the free end on one end side. A portion (neck) 32c is formed. The terminal pin 32 is connected to the end of the lead wire 33 via the crimp terminal 35 .

As shown in FIGS. 1 and 2, the crimp terminal 35 has a lead wire placement portion 35a in which the lead wire 33 is placed, and a lead wire placement portion 35a at a predetermined distance from the free end of the lead wire placement portion 35a (the left end in FIG. 2). In order to fix the lead wire 33 at the position, first claw portions 35b (fixing the covering portion of the lead wire) are formed extending upward on both sides at positions in the width direction of the lead wire placement portion 35a. A second claw portion 35c is formed upward from both sides of the lead wire placement portion 35a to hold and fix the end portion of the lead wire 33 similarly through a small gap from the portion 35b (in FIG. shows the state where the line is crimped).

The crimp terminal 35 has a holding portion 37 that holds the terminal pin 32, and has a holding portion 37b that holds down the head portion 32b side of the terminal pin 32 so that it does not come off. and a connection portion 36 between the lead wire 33 and the arrangement portion 35a.
The connecting portion 36 and the holding portion 37 are formed by punching out one piece of sheet metal. After punching, as shown in FIG. , is inserted into a portion formed between a recess 36a formed in the connecting portion 36 and the holding portion 37. As shown in FIG.
At least a portion of the connecting portion 36 is formed to have a flat portion. The example of FIG. 1 shows an example in which the holding portion 37 and the lead wire placement portion 35a are integrally formed with the connecting portion 36 made of a planar plate body. A flat part may be formed in a part so that the work can be easily performed.

The crimp terminal 35 is formed so that the constricted portion 32c of the terminal pin 32 is sandwiched between the abutment portion 37c and the restraining portion 37b and fixed. As a result, the lead wire 33 and the terminal pin 32 are connected by the crimp terminal 35 .
When the terminal pin 32 and the holding portion 37 are welded together, an automatic welding device capable of gripping the connecting portion 36 of the crimp terminal 35 is used to automate the attachment and welding of the holding portion 37 to the terminal pin 32. It becomes possible to do it easily.
Thus, the end portion of the lead wire 33 is fixed and held on one side of the crimp terminal 35 by the first claw portion 35b and the second claw portion 35c. Also, the terminal pin 32 is connected to the other side of the crimp terminal 35 via the connecting portion 36, and the terminal pin 32 and the holding portion 37 are welded.

As already explained, the terminal pin 32 is connected to the lead wire 33 by the crimp terminal 35 at the free end side of the terminal pin 32. As shown in FIG. On the other hand, since it is bent at an angle θ, it is bent at an angle θ at the position of the through hole 31a formed in the plate 31 as shown in FIG. This angle θ is preferably set so that the terminal pin 32 is at an angle of 20 to 75 degrees with respect to the plate 31 . Further, it is more preferable that the angle .theta.
The reason for this configuration is that even if a straight terminal is used, the lead wire that is welded or joined by other methods has a predetermined angle with respect to the plate surface of the relay terminal (hermetic connector). Therefore, no load is applied to the joints, and lead wires and the like can be routed without requiring height. Although the lead wires 33 shown in FIG. 7 extend in parallel in the same direction, the lead wires 33 may extend in different directions.

In other words, if a right-angled (90 degrees) terminal pin is inserted to suppress the height, the height can be suppressed to the maximum, but the distance between the adjacent terminal pins becomes short. By using the crimp terminal according to the present invention, the angle between the terminal pin and the lead wire becomes oblique, so that the shortest distance between adjacent terminal pins can be maintained at a certain level or more, and the gas meter can be used in a high-temperature environment due to a fire or the like. Even when placed on the bottom, it is possible to suppress the occurrence of sparks due to contact between terminals and short circuits due to tilting.

A seal member 31b is arranged around the through hole 31a of the plate 31, and the terminal pin 32 is inserted and fixed therein. The through hole 31a is airtightly closed by a sealing material 31b. Glass can be used as the sealing material 31b. That is, when the bent terminal pin 32 is inserted into and fixed to the plate 31, the lead wire 33 is inclined with respect to the surface of the plate 31 at an angle of 20 to 75 degrees. configured to be wearable.

In this way, since the lead wire 33 is inserted obliquely with respect to the plate 31, not only the distance between the lead wire 33 and the plate 31, but also the lead wire 33 from the plate 31 is inclined from 20 degrees. It can be bent at an angle of up to 75 degrees and can be automated. It is more preferable to set this angle within the range of 30 degrees to 60 degrees, and it is desirable to set it to approximately 45 degrees.

At this time, a plurality of terminal pins 32 are arranged on the plate 31, and the interval P (pitch) between the terminal pins 32 in the arrangement of the terminal pins 32 is at least approximately 5 mm. A through-hole 31a of the plate 31 is formed to be a hole of an iron component, and a glass material as a sealing material 31b is interposed in the through-hole 31a. That is, the plate 31 itself can be made of iron as described above, or only the periphery of the through hole 31a can be made of iron.

As in this embodiment, the terminal pin 32 and the plate 31 are sealed by using a sealing material (glass material) 31b around the through hole 31a. However, even if the sealing material (glass material) 31b is melted by some heat and the terminal pins 32 fall down, the distance P (pitch) between the terminal pins 32 is at least about 5 mm. Therefore, the possibility of contact between adjacent terminal pins 32, 32 is reduced. At this time, in this embodiment, the through hole 31a of the plate 31 and the terminal pin 32 are joined by welding. As welding, in addition to general welding, laser welding, resistance welding, and the like can be used.

Since the terminal pins 32 and the terminal pins 32 are arranged with an interval (pitch) of at least about 5 mm as described above, the terminal pins 32 are inserted into the through holes 31a of the plate 31 to automate welding. In this case, the connecting portion 36 of the plurality of crimp terminals 35 can be grasped by the robot, and the terminal pins 32 can be collectively inserted into the through-holes 31a of the plate 31. Furthermore, by using a bent welding terminal, the through-hole 31a and the terminal pin 32 can be welded, and efficiency can be improved.
As a result, it is possible to solve the problems of solder joints, such as the difficulty of managing stable connections due to large variations in quality due to flux or soldering work.

The display means 20 includes a liquid crystal display (not shown), a battery as a power source for driving the liquid crystal display, and a case containing the battery. A wireless communication antenna can also be formed on the back surface of the case.
A wireless communication antenna can be formed on a plastic surface by MID (Molded Interconnect Device) technology such as LDS (Laser Direct Structuring) or printing on the back side of the battery case of the meter or the case of the communication unit of the gas meter. . Therefore, it is possible to form the wireless communication antenna inconspicuously without separately providing a space for forming the wireless communication antenna.

FIG. 8 is a diagram showing another example, and is a partial perspective view illustrating a state in which the harness, the crimp terminal, and the terminal pin are connected to a plate (terminal plate). In this example, the same reference numerals are given to the same members, arrangement, etc. as in the previous example, and only different points will be explained.

In the example shown in FIG. 8, the shape of the plate is different, and four terminal pins 32 are fixed to the plate. Six or more terminal pins 32 may be fixed. The point is that the terminal pins 32 can be arranged so that the interval P (pitch) between the adjacent terminal pins 32 is about 5 mm or more in consideration of the area of the plate 31 .

As described above, according to the fluid flow measuring device according to the present invention, stable measurement is possible, and not only household flowmeters and industrial flowmeters, but also distances can be measured by generating ultrasonic waves in the air. It can also be applied to applications such as back sonar for automobiles.

10 measurement means (flow rate detection means)
20 display means 30 relay connector (relay terminal)
31 plate 31a through hole 31b sealing material 32 terminal pin 32a main body 32b head 32c constriction (neck)
33 lead wire 35 crimp terminal 35a lead wire placement portion 35b first claw portion 35c second claw portion 36 connecting portion 36a concave portion 37 holding portion 37a tongue piece 37b restraining portion 37c butting portion

Claims (7)

a flow rate detecting means for detecting a flow rate in a flow path through which a fluid flows; a display means for displaying information detected by the flow rate detecting means; a signal line connecting the flow rate detecting means and the display means; A measuring device comprising a relay terminal that connects an arranged signal line and a signal line arranged outside the fluid,
The relay terminal includes a plate, a plurality of through holes formed in the plate, and a terminal pin inserted through and fixed to the through holes via a sealing material to be airtightly closed,
The signal line arranged outside the fluid is inclined at an angle ranging from 20 degrees to 75 degrees with respect to the surface of the plate via a crimp terminal attached to the terminal pin. A measuring device characterized by being configured to be inserted. Further, a configuration in which a wireless communication antenna is formed is added to at least one of the back side of the case of the battery that drives the display means and the back side of the case of the communication device attached to the measuring device. Item 1. The measuring device according to item 1. A plurality of the terminal pins are arranged, and an interval between adjacent terminal pins in the arrangement of the terminal pins is configured to have an interval of at least 5 mm, and at least the through holes of the plate are formed so as to be iron alloy holes. 2. The measuring device according to claim 1, wherein glass is used as said sealing material. The crimp terminal includes a terminal pin presser that presses a terminal pin, a lead wire placement portion for arranging a lead wire, and a cover portion presser that presses a cover portion of the lead wire placed in the lead wire placement portion. 4. The measuring device according to any one of claims 1 to 3, wherein the lead wire and the end of the terminal pin are connected by the crimp terminal. The crimp terminal has a holding portion that holds the terminal pin, a connecting portion that is connected to the holding portion, and a lead wire holding portion that holds the lead wire via the connecting portion. 4. The measuring device according to claim 1, wherein the terminal pin and the lead wire are connected. 6. The measuring device according to claim 5, wherein at least a portion of said connecting portion is formed from a flat surface. The measuring device according to any one of claims 1 to 6, wherein the through hole of the plate and the terminal pin are joined by welding.

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