Electric fusion device

Abstract

To provide an electrofusion device capable of easily recognizing a number of charging times of a secondary battery.SOLUTION: An electrofusion device 1 comprises: a fusion number capturing unit 11 that captures a first fusion number N1 to Nth fusion number NN which are determined for a first pipe 100a to a Nth pipe included in a construction unit; a storage unit 14 that stores an amount of a first electric energy Q1 to an amount of a Nth electric energy QN which are required for joining per end portions of the first pipe to Nth pipe; a total electric energy calculation unit 15 for obtaining a total electric energy required for performing joining included in the construction unit from a sum of a product of the electric energy and a number of fusions; a measuring unit 12 that measures a remaining electric energy in a secondary battery 36; a display unit 17; and a control unit 23 that controls the display unit. When a value obtained by subtracting a remaining electric energy from the total electric energy is defined as a power shortage, and a maximum capacity of the secondary battery is defined as a battery maximum electric energy, and when the remaining electric energy is smaller than the total electric energy, the control unit causes the display unit to display a first necessary number of times obtained by dividing a shortage electric energy by the maximum battery electric energy and rounding up to an integer.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electrofusion apparatus. [Background technology]

[0002] Conventionally, resin pipes have been joined (fused) to each other via a coupling member (see, for example, Patent Documents 1 to 3). The coupling body of the coupling member is made of resin. An electric wire is embedded in the coupling body. An electric fusion device is used to join the coupling member and the pipes. When the ends of a pair of pipes are placed in the coupling body and electric power is applied to the electric wires by the electric fusion device, the electric wires generate heat. When the inner circumferential surface of the coupling member and the outer circumferential surface of the end of the pipes melt due to the heat and then cool and solidify, the pair of pipes are joined to each other via the coupling member.

[0003] In recent years, some electrofusion devices have been equipped with secondary batteries so that joining operations using the electrofusion device can be performed in locations away from a commercial power source. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4847846 [Patent Document 2] Patent No. 4923222 [Patent Document 3] Japanese Patent Application Laid-Open No. 2014-153811 Summary of the Invention [Problem to be solved by the invention]

[0005] However, for example, a construction unit, which is a single construction job, may include joining a predetermined number of pipes with different nominal diameters. When the pipes are made of the same resin material, generally, the larger the nominal diameter of the pipes, the more electricity is required to join them. The amount of power required for joining varies not only depending on the nominal diameter, but also on other factors such as the pipe wall thickness and material. When using an electric fusion device, it is difficult to determine the amount of power required to join the entire pipe in a construction unit.

[0006] The present invention has been made in consideration of these problems, and aims to provide an electric fusion device that can easily recognize the number of times a secondary battery needs to be charged to join pipes included in a construction unit. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention proposes the following means. The electrofusion apparatus of the present invention is configured to set a first fusion number N1 to an Nth fusion number N2, which are the numbers of fusion joints to be performed on the ends of first to Nth pipes included in a unit of work, the first to Nth pipes having different specifications from each other. N and a fusion number input section that inputs predetermined first to Nth amounts of power Q1 to Q2 required for joining one end of the first pipe to the Nth pipe. N A memory unit that stores the total amount of power Q required to perform the joining included in the construction unit tot The total electric energy calculation unit calculates the total electric energy Q from the sum of the products of the electric energy and the number of fusions, a measurement unit measures the amount of electric energy remaining in the secondary battery, a display unit performs display, and a control unit controls the display unit. tot When the value obtained by subtracting the remaining amount of power measured by the measurement unit from the total amount of power Q is defined as the power shortage amount and the maximum capacity of the secondary battery is defined as the maximum battery power amount, the control unit determines whether the remaining amount of power Q is greater than the total amount of power Q. tot When the power shortage is smaller than the maximum power capacity of the battery, the display unit displays a first necessary number obtained by dividing the power shortage by the maximum power capacity of the battery and rounding up the result to an integer. Here, N is a natural number greater than or equal to 2.

[0008] In this invention, the total power calculation unit calculates the first fusion number N1 to the Nth fusion number N2 input from the fusion number input unit.N , the first power amount Q1 to the Nth power amount Q N Based on this, the total power Q tot The control unit calculates the remaining energy amount as the total energy amount Q tot When the power shortage is smaller than the maximum power capacity of the battery, the display unit displays the first required number, which is the number of times the secondary battery is charged that is required to join the pipes included in the construction unit, by visually checking the first required number displayed on the display unit.

[0009] In the electrofusion apparatus, the fusion number receiving section receives the first fusion number N1 to the Nth fusion number N N From the construction plan in which the above is written, the first fusion number N1 to the Nth fusion number N N By reading the above, the first fusion number N1 to the Nth fusion number N N may be incorporated. In this invention, the fusion number intake section allows the first fusion number N1 to the Nth fusion number N N From the construction plan that lists the first fusion number N1 to the Nth fusion number N N By reading this, the first fusion number N1 to the Nth fusion number N N can be incorporated.

[0010] In the electrofusion apparatus, the fusion number receiving section receives the first fusion number N1 to the Nth fusion number N N By receiving fusion number information including the first fusion number N1 to the Nth fusion number N N may be incorporated. In this invention, the fusion number information is received by the fusion number receiving unit, and the first fusion number N1 to the Nth fusion number N N can be incorporated.

[0011] In the electrofusion apparatus, the fusion number receiving section receives the first fusion number N1 to the Nth fusion number N N By inputting the above, the first fusion number N1 to the Nth fusion number N Nmay be incorporated. In this invention, the first fusion number N1 to the Nth fusion number N N By inputting the above, the first fusion number N1 to the Nth fusion number N N can be incorporated.

[0012] In the electrofusion apparatus, the first to Nth pipes having at least one different specification may have different nominal diameters. In this invention, for the first to Nth pipes, which have different nominal diameters, the user can easily recognize the first required number, which is the number of times the secondary battery needs to be charged to join the pipes included in the construction unit, by visually checking the first required number displayed on the display unit.

[0013] In the electrofusion apparatus, the fusion number input unit transmits the first fusion number N1 to the Nth fusion number N to the total power calculation unit by wireless communication. N You may also send In this invention, even if the fusion number input unit and the total power calculation unit are separated from each other, the fusion number input unit transmits the first fusion number N1 to the Nth fusion number N2 to the total power calculation unit by wireless communication. N can be sent.

[0014] In addition, in the electrofusion device, when the remaining energy is smaller than the total energy, the control unit may cause the display unit to display a second required number of times, which is calculated by dividing the energy shortage by the maximum energy of the battery and multiplying the result by a safety factor greater than 1, and rounding up the result to an integer. In this invention, the second required number of times, which has a margin of safety factor with respect to the first required number of times, can be displayed on the display unit.

[0015] The electrofusion device may further include a battery information storage unit that stores the number of times the secondary battery has been used, wherein the storage unit stores an upper limit on the number of times the secondary battery has been used, and the control unit may cause the display unit to display a message urging the user to replace the secondary battery when the number of times the secondary battery has been used reaches or exceeds the upper limit. Generally, when a secondary battery is used more than a certain number of times, the charging performance of the secondary battery deteriorates. In this invention, when the number of times of use reaches or exceeds the upper limit, the control unit causes the display unit to display a message urging the user to replace the secondary battery, and the user visually recognizes this message and replaces the secondary battery. This allows the charging performance of the secondary battery to be maintained. [Effects of the Invention]

[0016] With the electrofusion device of the present invention, it is possible to easily recognize the number of times the secondary battery needs to be charged to join the pipes included in the construction unit. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of a fusion control device in an electrofusion apparatus according to one embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of the configuration of the electrofusion device. [Figure 3] FIG. 1 is a diagram showing an example of a construction plan. [Figure 4] FIG. 2 is a block diagram of a communication device of the electrofusion apparatus. [Figure 5] FIG. 1 is a diagram showing an overview of a battery charger for charging a battery pack. DETAILED DESCRIPTION OF THE INVENTION

[0018] An embodiment of an electrofusion apparatus according to the present invention will be described below with reference to FIGS. The electrofusion apparatus 1 of this embodiment shown in FIGS. 1 and 2 is used to join a pair of pipes 100 together via a joint member 105, for example. The pipe 100 is made of a thermoplastic resin such as polyethylene. As shown in FIG. 2, for example, the joint member 105 includes a joint body 106, a pair of electric wires (not shown), and a pair of terminals 107.

[0019] The joint body 106 is formed in a cylindrical shape from the same material as the pipe 100. A locking portion 106a is fixed to the inner peripheral surface of the joint body 106 at the center in the axial direction of the joint body 106. The locking portion 106a is annular and is disposed coaxially with the joint body 106. A joint code 109, which may be a barcode, a QR code (registered trademark), or the like, is provided on the outer surface of the joint body 106. For example, the joint code 109 contains information indicating the voltage value, current value, amount of electric power Q (described later), nominal diameter of the pipe 100, and the like, required for joining.

[0020] The electric wires are embedded in each end of the joint body 106. The first electric wire, which is one of the pair of electric wires, is an electric wire for heating the first end of the joint body 106. The second electric wire, which is the other of the pair of electric wires, is an electric wire for heating a second end of the joint body 106 opposite the first end. The pair of terminals 107 are provided on the outer surface of the joint body 106. The pair of terminals 107 are connected to electric wires, respectively. In the joint member 105 configured as above, the end of the pipe 100 is placed inside the end of the joint body 106 .

[0021] As shown in FIGS. 1 and 2, the electrofusion apparatus 1 of this embodiment includes a fusion control device 10 and a communication device 45. As shown in Figure 2, the fusion control device 10 includes a main reading unit (fusion number input unit) 11, a measurement unit 12, a battery information reading unit 13, a memory unit 14, a total power calculation unit 15, a main input unit 16, a main display unit (display unit) 17, a wireless communication unit 20, a main power supply unit 21, a fusion power supply unit 22, a main control unit (control unit) 23, and a battery pack 24. In the following, the battery pack 24 will be first described.

[0022] The battery pack 24 includes a case 35 , a secondary battery 36 , a battery information storage unit 37 , a battery connection terminal 38 , and a battery information terminal 39 . The case 35 has a predetermined shape that can accommodate the secondary battery 36 and the battery information storage unit 37. The secondary battery 36 is a rechargeable battery such as a lithium ion secondary battery. Here, the maximum capacity that can be charged into an empty secondary battery 36 is defined as the maximum battery power. The battery information storage unit 37 stores the number of times the secondary battery 36 has been used, etc. For example, in a new battery pack 24, the secondary battery 36 has been charged once, and the number of times the secondary battery 36 has been used stored in the battery information storage unit 37 is 1.

[0023] The battery connection terminal 38 and the battery information terminal 39 are formed of, for example, a conductive metal and are fixed to the outer surface of the case 35. The battery connection terminal 38 is connected to the secondary battery 36. The battery information terminal 39 is connected to the battery information storage unit 37.

[0024] The main reading unit 11 is equipped with a known optical reading device. The main reading unit 11 reads the joint code 109 of the joint member 105, the construction plan 115 shown in Fig. 3, and the like. Here, the construction plan 115 will be described.

[0025] First, the first pipe 100a, second pipe 100b, and third pipe 100c shown in Fig. 2, which are pipes 100 used for joining by the electrofusion apparatus 1, will be described. The first pipe 100a to third pipe 100c have different nominal diameters (at least one of the specifications of the pipe 100). Specifically, the first pipe 100a to third pipe 100c have approximately the same pipe wall thickness. The nominal diameter of the second pipe 100b is larger than the nominal diameter of the first pipe 100a, and the nominal diameter of the third pipe 100c is larger than the nominal diameter of the second pipe 100b. Although an example will be described in which there are three types of pipes 100, namely, first pipe 100a to third pipe 100c, the number of types of pipes 100 is not limited as long as N (plural) is a natural number of 2 or more. At least one of the specifications of the pipe 100 is the nominal diameter of the pipe 100. However, at least one of the specifications of the pipe 100 may be the thickness of the pipe wall of the pipe 100, the material of the pipe 100, or the like.

[0026] The joint member 105 includes joint members 105a to 105c corresponding to the first pipe 100a to the third pipe 100c. For example, the joint member 105a is a joint for joining the pair of first pipes 100a to each other. The joint members 105b and 105c are similar to the joint member 105a.

[0027] Here, the construction unit refers to a predetermined piping structure in which pipes 100 and coupling members 105 are joined together over a predetermined period of time using the electrofusion apparatus 1. In this example, the construction unit includes, for example, six first pipes 100a, six second pipes 100b, three third pipes 100c, five coupling members 105a, five coupling members 105b, and two coupling members 105c. For example, to construct a piping structure, the first fusion number N1, which is the number of ends of the first pipe 100a to be fused, is 10, which is twice the number of coupling members 105a. The second fusion number N2, which is the number of ends of the second pipe 100b to be fused, is 10, which is twice the number of coupling members 105b. The third fusion number N3, which is the number of ends of the third pipe 100c to be fused, is 4, which is twice the number of coupling members 105c. The first fusion number N1 to the third fusion number N3 are determined for the first pipe 100a to the third pipe 100c included in the construction unit.

[0028] 3, the first fusion number N1 to the third fusion number N3 are written in the construction plan 115. The main reading unit 11 reads the first fusion number N1 to the third fusion number N3.

[0029] As shown in FIG. 2, the measuring unit 12 measures the remaining energy, which is the amount of energy remaining in the secondary battery 36 of the battery pack 24. The battery information reading unit 13 reads the number of times the secondary battery 36 has been used and other information from the battery information storage unit 37 of the battery pack 24 . The storage unit 14 stores a first amount of power Q1, a second amount of power Q2, a third amount of power Q3, an upper limit value of the number of times, and the like, which will be described later. When the first amount of power Q1, the second amount of power Q2, and the third amount of power Q3 are not to be distinguished from one another, they are referred to as the amount of power Q. The first amount of power Q1(J) is a predetermined amount of power required to join each end of the first pipe 100a. The second amount of power Q2(J) is a predetermined amount of power required to join each end of the second pipe 100b. The third amount of power Q3(J) is a predetermined amount of power required to join each end of the third pipe 100c.

[0030] Generally, the charging performance of a secondary battery deteriorates after it has been used a certain number of times. The upper limit of the number of times is the number of times the secondary battery 36 can be charged without any significant deterioration in charging performance. The total power calculation unit 15 calculates the total power Q required to perform the joining included in the construction unit. tot is calculated from the sum of the products of the electric energy (first electric energy Q1 to third electric energy Q3) and the number of fusions (first fusion number N1 to third fusion number N3). More specifically, the total electric energy calculation unit 15 calculates the total electric energy Q required to perform the joining included in the construction unit. tot is calculated from equation (1).

[0031]

number

[0032] 1 and 2, the main input unit 16 has buttons, etc. The user operates the main input unit 16 to make an input. The main display unit 17 is, for example, a liquid crystal panel, and performs display. As shown in FIG. 2, the wireless communication unit 20 performs wireless communication with the outside. The main power supply unit 21 supplies control power from the secondary battery 36 of the battery pack 24 to the main reading unit 11, measurement unit 12, battery information reading unit 13, memory unit 14, total power calculation unit 15, main input unit 16, main display unit 17, wireless communication unit 20, main control unit 23, etc. The fusible power source 22 transmits fusible power from the secondary battery 36 of the battery pack 24 to the joint member 105. A first end of a cable 27 is connected to the fusible power source 22. An output connector 28 is provided at a second end of the cable 27 opposite the first end. The output connector 28 is detachably connected to a pair of terminals 107 of the joint member 105.

[0033] The main control unit 23 is connected to the main reading unit 11, the measuring unit 12, the battery information reading unit 13, the memory unit 14, the total power calculation unit 15, the main input unit 16, the main display unit 17, the wireless communication unit 20, and the fusion power source unit 22. The main control unit 23 controls the memory unit 14, the main display unit 17, the wireless communication unit 20, and the fusion power source unit 22. The measuring unit 12 and other components are housed in a case 30. A battery connection terminal 31 and a battery information terminal 32 are fixed to the case 30. A battery storage section 30a to which the battery pack 24 is detachably attached is provided in the portion of the case 30 to which the battery connection terminal 31 and the battery information terminal 32 are fixed. The battery connection terminal 31 is connected to the main power supply unit 21, the melting power supply unit 22, and the like. The battery information terminal 32 is connected to the battery information reading unit 13 .

[0034] When the battery pack 24 is attached to the battery storage section 30a of the case 30, the battery connection terminal 31 is connected to the battery connection terminal 38 of the battery pack 24, and the battery information terminal 32 is connected to the battery information terminal 39 of the battery pack 24.

[0035] The communication device 45 is configured using a computer such as a high-performance mobile phone, a so-called smartphone, etc. As shown in Fig. 4, the communication device 45 includes a communication display input unit 46, a communication reading unit (fusion number acquisition unit) 47, a wireless communication unit 48, and a communication control unit 49. The communication display input unit 46 has a communication input unit 46a and a communication display unit 46b. The communication input unit 46a is, for example, a touch panel. A user operates the communication input unit 46a to input information. The communication display unit 46b is, for example, a liquid crystal panel, and displays information. The communication input unit 46a and the communication display unit 46b are arranged so as to overlap each other, constituting the communication input unit 46. The communication reader 47 includes a known optical reader and reads the construction plan 115. The wireless communication unit 48 performs wireless communication with the wireless communication unit 20 of the fusion control device 10 via a communication network NW (see FIG. 2), or performs wireless communication directly with the wireless communication unit 20. The communication control unit 49 is connected to the communication display input unit 46 , the communication reading unit 47 and the wireless communication unit 48 , and controls the communication display input unit 46 and the wireless communication unit 48 .

[0036] 5 shows a battery charger 55 for charging the battery pack 24. The battery charger 55 has a device main body 56 and a plug 58 connected to the device main body 56 via a cable 57. Device main body 56 has an AC / DC converter (not shown) and a pair of electrical contacts. The AC / DC converter is connected to cable 57. For example, the AC / DC converter converts AC commercial power input from plug 58 into DC power. The converted power is output to one of the pair of electrical contacts. When the battery pack 24 is attached to the device body 56 of the battery charger 55 , the battery connection terminal 38 of the battery pack 24 is connected to one of a pair of electrical contacts of the device body 56 .

[0037] Next, the operation of the electrofusion apparatus 1 configured as above will be described. The battery pack 24 is previously attached to the battery storage section 30a of the fusion control device 10. The plug 58 of the battery charger 55 is inserted into an outlet (not shown). The user reads the construction plan 115 using the communication reading unit 47 of the communication device 45. The communication reading unit 47 reads the first fusion number N1 to the third fusion number N3 from the construction plan 115, thereby capturing the first fusion number N1 to the third fusion number N3. The communication control unit 49 of the communication device 45 sends the first fusion number N1 to the third fusion number N3 to the total power calculation unit 15 via wireless communication unit 48 and wireless communication unit 20 of the fusion control device 10. That is, the communication reading unit 47 sends the first fusion number N1 to the third fusion number N3 to the total power calculation unit 15 via wireless communication. The main reading unit 11 of the fusion control device 10 may read the construction plan 115 . The total power calculation unit 15 calculates the total power Q required to perform the joining included in the construction unit. tot is calculated from the above formula (1). The measuring unit 12 measures the remaining power of the secondary battery 36 of the battery pack 24. The main control unit 23 calculates the total power Q calculated by the total power calculation unit 15. tot The value obtained by subtracting the remaining amount of energy measured by the measuring unit 12 from the calculated value is calculated as the amount of energy shortage.

[0038] The main control unit 23 determines that the remaining energy is the total energy Q tot When the remaining energy is smaller than the total energy Q, the main display unit 17 displays the first required number of times obtained by dividing the amount of energy shortage by the maximum energy of the battery and rounding up the result to an integer. tot If the above condition is met, the above display is not made. For example, a user scrapes the outer peripheral surfaces of the ends of a pair of first pipes 100a and inserts these ends into the coupling members 105a. When the user operates the main input unit 16 of the fusion control device 10, the main control unit 23 applies electric power of the first electric energy Q1 to each electric wire of the coupling member 105a via the melting power source unit 22. Through the above steps, the pair of first pipes 100a are joined to each other via the joint members 105a. The second pipe 100b and the third pipe 100c are joined in the same manner.

[0039] The user removes the battery pack 24 from the battery storage section 30a of the fusion control device 10 as appropriate based on the first required number of times displayed on the main display section 17. The user then attaches the battery pack 24 to the device body 56 of the battery charger 55 and charges the secondary battery 36 of the battery pack 24. Each time the secondary battery 36 is charged by the battery charger 55, the number of times the secondary battery 36 has been used, which is stored in the battery information memory section 37, is increased by one.

[0040] When the number of times the battery pack 24 (secondary battery 36) has been used reaches or exceeds the upper limit, the main control unit 23 may cause the main display unit 17 to display a message urging the user to replace the battery pack 24. In this case, the user who sees the message replaces the battery pack 24 with a new battery pack 24.

[0041] As described above, in the electrofusion apparatus 1 of this embodiment, the total electric energy Q is calculated based on the first fusion number N1 to the third fusion number N3 acquired from the communication reading unit 47 and the first electric energy Q1 to the third electric energy Q3 stored in the memory unit 14. tot The main control unit 23 calculates the remaining energy amount as the total energy amount Q tot If the power shortage is smaller than 1 / 2, the first required number of times, which is calculated by dividing the power shortage amount by the maximum battery power amount and rounding up to an integer, is displayed on the main display unit 17. By visually checking the first required number of times displayed on the main display unit 17, the user of the electrofusion apparatus 1 can easily recognize the first required number of times, which is the number of times the secondary battery 36 is charged that is required to join the pipes 100 included in the construction unit.

[0042] The communication reading unit 47 captures the first fusion numbers N1 to N3 by reading the first fusion numbers N1 to N3 from the construction plan 115. Therefore, the communication reading unit 47 can capture the first fusion numbers N1 to N3 by reading the first fusion numbers N1 to N3 from the construction plan 115 in which the first fusion numbers N1 to N3 are written. The first pipes 100a to 3rd pipes 100c, which differ from each other in at least one of their specifications, are the first pipes 100a to 3rd pipes 100c, which differ from each other in nominal diameter. For the first pipes 100a to 3rd pipes 100c, which differ from each other in nominal diameter, the user can easily recognize the first required number of times, which is the number of times the secondary battery 36 needs to be charged, required to join the pipes 100 included in the construction unit, by visually checking the first required number of times displayed on the display unit 17.

[0043] The communication reading unit 47 transmits the first fusion number N1 to the third fusion number N3 via wireless communication to the total power calculation unit 15. Therefore, even if the communication reading unit 47 and the total power calculation unit 15 are separated from each other, the communication reading unit 47 can transmit the first fusion number N1 to the third fusion number N3 to the total power calculation unit 15 via wireless communication. Generally, the charging performance of a secondary battery deteriorates after it has been used a certain number of times. When the number of times the battery pack 24 has been used reaches or exceeds the upper limit, the main control unit 23 may cause the main display unit 17 to display a message urging the user to replace the battery pack 24. This configuration allows the user to visually recognize this message and replace the battery pack 24, thereby maintaining the charging performance of the battery pack 24.

[0044] The configuration of the electrofusion apparatus 1 of this embodiment can be modified in various ways as described below. The storage unit 14 may store a safety factor greater than 1. Then, the main control unit 23 calculates the remaining energy amount by calculating the total energy amount Q tot When the power shortage is smaller than the first required number of times, the second required number of times obtained by dividing the power shortage amount by the maximum battery power amount, multiplying the result by a safety factor, and rounding up the result to an integer may be displayed on main display unit 17. By configuring in this way, the second required number of times, which has a margin of safety factor compared to the first required number of times, can be displayed on main display unit 17. The safety factor may be increased as the number of times the secondary battery 36 is used increases.

[0045] In this embodiment, the fusion number acquisition unit is the main reader 11 of the fusion control device 10 and the communication reader 47 of the communication device 45. However, the fusion number acquisition unit may also be the main receiver of the fusion control device 10 and the communication receiver of the communication device 45. In this case, the fusion number acquisition unit receives fusion number information including the first fusion numbers N1 to N3, thereby acquiring the first fusion numbers N1 to N3. In this case, for example, the main receiver and the communication receiver can acquire the first fusion numbers N1 to N3 by receiving the fusion number information from the fusion number acquisition unit using wired communication, wireless communication, a storage medium, etc.

[0046] The fusion number input unit may be integrated with the main input unit 16 of the fusion control device 10 and the communication input unit 46a of the communication device 45. In this case, the first fusion number N1 to the third fusion number N3 are input by the user in the fusion number input unit, and the first fusion number N1 to the third fusion number N3 are input. N By inputting the above, the fusion number input section will be the first fusion number N1 to the Nth fusion number N N can be incorporated.

[0047] When the remaining power of the secondary battery 36 is about to run out during joining by the electrofusion apparatus 1 (hereinafter referred to as the low remaining power state), power may be applied as follows. For example, the low remaining power state may be determined when the voltage of the secondary battery 36 falls below 101% to 110% of the over-discharge protection voltage. Here, the over-discharge protection voltage means the end of discharge. The following describes the case where the first pipe 100a is joined. Here, the application time is defined as the time required to join each end of the pipe 100. For example, the application time is about several minutes.

[0048] When the secondary battery 36 enters a state of low remaining energy while the melting power source 22 is applying the first amount of power Q1, the main control unit 23 performs a re-joining process described below if the low remaining energy state occurs within X hours (3% to 5% of the application time) from the start of the application time, and performs a battery replacement process described below if the low remaining energy state occurs more than X hours from the start of the application time. In the rejoining process, for example, the main control unit 23 causes the main display unit 17 to display "Please replace the battery pack, replace the coupling member, and re-install." In this case, the user who sees the display replaces the battery pack 24 with a new battery pack 24. The end portions of each pipe 100 that are in the process of being joined are cut, and the cut end portions and the coupling member 105a that is in the process of being joined are discarded. The outer peripheral surfaces of the ends of the pair of first pipes 100a are ground, and these ends are inserted into new joint members 105a, respectively. The user uses the electrofusion apparatus 1 equipped with a new battery pack 24 to join the pair of first pipes 100a via the joint members 105a.

[0049] On the other hand, in the battery replacement process, for example, main control unit 23 causes main display unit 17 to display "Please replace the battery pack within Y hours." Y hours is between 8% and 15% of the application time. In this case, a user who sees the display replaces battery pack 24 with a new battery pack 24 within Y hours. Main control unit 23 causes fusible power source unit 22 to apply a voltage corresponding to first power amount Q1 for (application time - X hours). Here, the time required to replace the battery pack 24 with a new battery pack 24 is defined as the battery replacement time. After the battery pack 24 is replaced, the main control unit 23 may cause the fusion power source unit 22 to apply a voltage corresponding to the first amount of power Q1 for a time defined by the formula (2). (Application time - X hours) + (Battery replacement time x (10% to 80%)) (2)

[0050] In the battery replacement process, if the user fails to replace the battery pack 24 within Y hours, the main control unit 23 may display "Installation error: Please replace the joint member and try again" on the main display unit 17. At this time, the electrofusion device 1 may be provided with a warning unit that emits a warning sound such as a buzzer, and the warning unit may emit the warning sound.

[0051] Although one embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and configuration changes, combinations, deletions, etc. are also included within the scope that does not deviate from the gist of the present invention. For example, in the above embodiment, the electrofusion device 1 may be provided with either the main reading unit 11 of the fusion control device 10 or the communication reading unit 47 of the communication device 45. A single electric wire may be embedded in the joint body 106 of the joint member 105 to simultaneously heat the first end and the second end of the joint body 106. In this case, for example, to join a pair of pipes 100a to each other via the joint member 105a, twice the amount of electric power Q1 is applied to the electric wire. [Explanation of symbols]

[0052] 1. Electric fusion device 11 Main reading unit (unit for capturing fusion count) 12 Measuring part 14 Storage section 15 Total power calculation unit 17 Main display section (display section) 23 Main control unit (control unit) 36 Secondary battery 47 Communication reading unit (unit that captures fusion number) 100a First piping 100b Second piping 100c 3rd piping 115 Construction Plan

Claims

1. A first fusion number N is the number of fusion joints to be performed on the ends of the first to Nth pipes included in the construction unit, the first to Nth pipes having different specifications from each other. １ From the Nth fusion number N Ｎ a fusion number capture portion into which the number is captured; A predetermined first amount of power Q required for joining one end of the first pipe to the Nth pipe １ From the Nth power amount Q Ｎ a storage unit that stores the The total amount of power Q required to perform the joining included in the construction unit ｔｏｔ a total power calculation unit that calculates the sum of the products of the power amounts and the number of fusions; a measuring unit that measures the amount of remaining power in the secondary battery; a display unit for displaying; a control unit that controls the display unit; Equipped with The total power amount Q calculated by the total power amount calculation unit ｔｏｔ a value obtained by subtracting the remaining energy measured by the measurement unit from the power consumption amount is defined as the energy shortage amount, When the maximum capacity of the secondary battery is defined as the maximum battery power, The control unit determines whether the remaining energy amount is equal to the total energy amount Q ｔｏｔ When the power shortage is smaller than the maximum power capacity of the battery, the display unit displays a first required number of times obtained by dividing the power shortage by the maximum power capacity of the battery and rounding up the result to an integer. Here, N is a natural number of 2 or more.

2. In the fusion number intake section, the first fusion number N １ From the Nth fusion number N Ｎ From the construction plan in which the first fusion number N １ From the Nth fusion number N Ｎ By reading the number of first fusions N １ From the Nth fusion number N Ｎ The electrofusion apparatus of claim 1 , wherein

3. In the fusion number intake section, the first fusion number N １ From the Nth fusion number N Ｎ By receiving fusion number information including the first fusion number N １ From the Nth fusion number N Ｎ The electrofusion apparatus of claim 1 , wherein

4. In the fusion number intake section, the first fusion number N １ From the Nth fusion number N Ｎ By inputting the number of first fusions N １ From the Nth fusion number N Ｎ The electrofusion apparatus of claim 1 , wherein

5. The electrofusion apparatus according to claim 1 , wherein the first to Nth pipes having at least one different specification are the first to Nth pipes having different nominal diameters.

6. The fusion number input unit transmits the first fusion number N １ From the Nth fusion number N Ｎ The electrofusion apparatus according to claim 1 , wherein the electrofusion apparatus sends a signal.

7. 7. The electrofusion apparatus according to claim 1, wherein when the remaining energy is smaller than the total energy, the control unit causes the display unit to display a second required number of times obtained by dividing the amount of energy shortage by the maximum energy of the battery and multiplying the result by a safety factor greater than 1, and rounding up the result to an integer.

8. a battery information storage unit that stores the number of times the secondary battery has been used; The storage unit stores an upper limit value of the number of times, The electrofusion apparatus according to claim 1 , wherein the control unit causes the display unit to display a message urging the user to replace the secondary battery when the number of uses reaches or exceeds the upper limit.

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