Electric appliance detection device
By designing a detachable upper and lower cover mutual inductance coil structure in the electrical testing device, the problem of traditional devices requiring power outages for maintenance is solved, enabling power-free maintenance and parts replacement, and reducing the difficulty of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional integrated testing devices require power outages during maintenance or internal parts replacement, which affects the stable operation of electrical equipment and increases the difficulty of maintenance.
Design an electrical testing device in which mutual inductance coils are respectively installed on the upper and lower covers and form an annular channel through a detachable connection, allowing for maintenance or replacement of internal parts without power interruption.
This approach reduces the difficulty of maintenance and parts replacement while improving maintenance efficiency without affecting the stable operation of electrical equipment.
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Figure CN224066864U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electrical equipment, in particular to an electrical equipment detection device. BACKGROUND
[0002] At present, it is usually necessary to monitor the running electrical equipment to ensure the stable operation of the electrical equipment. Taking an electric meter box as an example, a comprehensive detection device is usually arranged in the electric meter box, and the comprehensive detection device has a mutual inductor. The power line is passed through the mutual inductor to obtain the detected electrical signal. However, when the conventional comprehensive detection device is overhauled or internal parts are replaced, the electric meter box needs to be powered off, and then the power line is taken out of the mutual inductor, which affects the stable operation of the electric meter box and the power distribution cabinet, and increases the difficulty of overhauling the comprehensive detection device. CONTENT OF THE UTILITY MODEL
[0003] The present application provides an electrical equipment detection device, which aims to solve the technical problem that the current comprehensive detection device is difficult to overhaul or replace internal parts.
[0004] The present application provides an electrical equipment detection device, which comprises:
[0005] an upper cover, the upper cover having a first mutual inductor;
[0006] a lower cover, the lower cover being detachably connected with the upper cover, the lower cover having a second mutual inductor, the second mutual inductor corresponding to the first mutual inductor;
[0007] In the state that the upper cover and the lower cover are connected, the first mutual inductor and the second mutual inductor are butted to form a channel for measurement.
[0008] In some embodiments, the first mutual inductor and the second mutual inductor are arc-shaped.
[0009] In some embodiments, the inner periphery of the first mutual inductor is provided with a first isolation wall, and the inner periphery of the second mutual inductor is provided with a second isolation wall.
[0010] In some embodiments, the upper cover and the lower cover are detachably connected with a front cover;
[0011] The front cover has a through hole, and the through hole is opposite to the channel formed by the first mutual inductor and the second mutual inductor.
[0012] In some embodiments, the front cover further has an isolation cylinder surrounding the through hole.
[0013] The inner periphery of the first mutual inductor is provided with a first isolation wall, and the inner periphery of the second mutual inductor is provided with a second isolation wall.
[0014] The inner diameters of the first and second isolation walls are equal to the inner diameter of the isolation cylinder, and the first and second isolation walls are in abutment with the isolation cylinder.
[0015] In some embodiments, the front cover further has a first connecting portion and a second connecting portion;
[0016] The first connecting portion is connected with the upper cover, and the second connecting portion is connected with the lower cover.
[0017] In some embodiments, the upper cover has a first positioning column therein, and the lower cover has a second positioning column therein;
[0018] The first positioning column is in contact with the outer peripheral surface of the second mutual inductor away from the first mutual inductor, and the second positioning column is in contact with the outer peripheral surface of the first mutual inductor away from the second mutual inductor.
[0019] In some embodiments, a circuit board is further installed in the upper cover, and the circuit board has a first interface thereon, and the first interface is connected with a magnetic voltage sensor.
[0020] In some embodiments, the abutment end of the first mutual inductor and the abutment end of the second mutual inductor are respectively provided with a groove and a boss, and the groove and the boss are in clamping cooperation.
[0021] In some embodiments, the upper cover and the lower cover are respectively provided with a clamping block and a clamping buckle, and the upper cover and the lower cover are detachably connected through clamping of the clamping block and the clamping buckle.
[0022] In a second aspect, the application provides an electric meter box comprising the electric appliance detection device as described in the first aspect.
[0023] In the application, the first mutual inductor is arranged in the upper cover, and the second mutual inductor is arranged in the lower cover. After the upper cover and the lower cover are in abutment, the first abutment end of the first mutual inductor is in contact with the third abutment end of the second mutual inductor, and the second abutment end of the first mutual inductor is in contact with the fourth abutment end of the second mutual inductor. Since at least part of the first mutual inductor between the first abutment end and the second abutment end is bent in a direction away from the lower cover, and at least part of the second mutual inductor between the third abutment end and the fourth abutment end is bent in a direction away from the upper cover, the first mutual inductor and the second mutual inductor can form a ring after abutment, so that a complete mutual inductor is formed by the first mutual inductor and the second mutual inductor. When the electric appliance detection device is overhauled, the upper cover and the lower cover only need to be separated to overhaul or replace internal parts, and the power supply of the electric appliance device does not need to be disconnected during the overhauling process. The stability of the electric appliance device is ensured, and the overhauling difficulty of the electric appliance detection device is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0025] Figure 1 is an assembly schematic view of the electric appliance detection device provided in the embodiments of the present application;
[0026] Figure 2 is an explosion schematic view of the electric appliance detection device provided in the embodiments of the present application;
[0027] Figure 3 is an internal structure schematic view of the first mutual inductor provided in the embodiments of the present application;
[0028] Figure 4 is a structure schematic view of the upper cover provided in the embodiments of the present application;
[0029] Figure 5 is a structure schematic view of the lower cover provided in the embodiments of the present application;
[0030] Figure 6 is a structure schematic view of the front cover provided in the embodiments of the present application;
[0031] Figure 7 is a structure schematic view of the first mutual inductor provided in the embodiments of the present application;
[0032] Figure 8 is a structure schematic view of the second mutual inductor provided in the embodiments of the present application.
[0033] Among them, 10 is an upper cover, 11 is a first mutual inductor, 1101 is an arc-shaped core, 1102 is a coil, 1103 is an arc-shaped shell, 111 is a first butt joint end, 112 is a second butt joint end, 113 is a groove, 12 is a first isolation wall, 13 is a third connecting part, 14 is a first positioning column, 20 is a lower cover, 21 is a second mutual inductor, 211 is a third butt joint end, 212 is a fourth butt joint end, 213 is a boss, 22 is a second isolation wall, 23 is a fourth connecting part, 24 is a second positioning column, 30 is a front cover, 31 is a through hole, 32 is an isolation cylinder, 33 is a first connecting part, 34 is a second connecting part, 40 is a circuit board, 41 is a first interface, and 50 is a magnetic attraction type voltage sensor. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be described clearly and completely in the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.
[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.
[0036] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration". Any implementation described as "exemplary" in the present application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the present application. In the following description, for the purposes of explanation, numerous details are set forth. It should be appreciated that the present application can be practiced in a variety of ways without some of these specific details. In other instances, well known structures and processes are not described in detail so as not to obscure the description of the present application. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
[0037] The present application provides an electric appliance detection device, which will be described in detail below.
[0038] First, refer to Figure 1 , Figure 1 Fig. 1 shows a schematic assembly view of an electric appliance detection device in an embodiment of the present application, Figure 2 Fig. 1 shows a schematic assembly view of an electric appliance detection device in an embodiment of the present application,
[0039] The upper cover 10 has a first mutual inductor coil 11;
[0040] The lower cover 20 is detachably connected with the upper cover 10, and has a second mutual inductor coil 21;
[0041] The first mutual inductor coil 11 has a first connecting end 111 and a second connecting end 112, and the second mutual inductor coil 21 has a third connecting end 211 and a fourth connecting end 212. The first connecting end 111 is in contact with the third connecting end 211, and the second connecting end 112 is in contact with the fourth connecting end 212.
[0042] In the embodiment, the first mutual inductor coil 11 is arranged at the edge of the upper cover 10 adjacent to the lower cover 20, and the second mutual inductor coil 21 is arranged at the edge of the lower cover 20 adjacent to the upper cover 10. After the upper cover 10 and the lower cover 20 are connected, the first mutual inductor coil 11 and the second mutual inductor coil 21 are directly in contact and form a ring shape.
[0043] Specifically, the first mutual inductor coil 11 is arranged at the edge of the upper cover 10 adjacent to the lower cover 20, and the second mutual inductor coil 21 is arranged at the edge of the lower cover 20 adjacent to the upper cover 10. After the upper cover 10 and the lower cover 20 are connected, the first mutual inductor coil 11 and the second mutual inductor coil 21 are directly in contact and form a ring shape. Exemplarily, the upper cover 10 and the lower cover 20 can be detachably connected by buckling, threaded connection or the like. For example, in some embodiments of the present application, the upper cover 10 and the lower cover 20 are respectively provided with a clamping block and a clamping buckle, and the upper cover 10 and the lower cover 20 are detachably connected by clamping of the clamping block and the clamping buckle.
[0044] Generally, one of the upper cover 10 and the lower cover 20 has a larger volume, and the other has a smaller volume, so that the electrical components, such as the circuit board 40 or other detection sensors, are installed in the one with a larger volume, and the other one only accommodates the components of the mutual inductor coil (such as the first mutual inductor coil 11 or the second mutual inductor coil 21), thereby facilitating the electrical connection of the electrical components of the electrical detection device. Figure 2 For example, the volume of the upper cover 10 is larger than that of the lower cover 20, and the upper cover 10 has a larger accommodation space and installs the corresponding circuit board 40 structure inside. It can be understood that a plurality of electrical components can also be arranged in the upper cover 10 and the lower cover 20 respectively according to actual needs.
[0045] The first mutual inductance coil 11 and the second mutual inductance coil 21 are components of mutual inductance coils, which are made of conductive materials (such as metal or graphite). After the upper cover 10 and the lower cover 20 are connected, the first mutual inductance coil 11 and the second mutual inductance coil 21 directly contact and form a ring. That is, in the state that the upper cover 10 and the lower cover 20 are connected, the first mutual inductance coil 11 and the second mutual inductance coil 21 are connected to form a channel for measurement. The power line of the electrical equipment can pass through the channel of the ring-shaped mutual inductance coil, and the mutual inductance coil can measure the electrical signal of the power line through electromagnetic effect.
[0046] In some embodiments of the present application, the number of the first mutual inductance coil 11 and the second mutual inductance coil 21 is one or more, and the second mutual inductance coil 21 corresponds to the first mutual inductance coil 11 one by one. When the number of the first mutual inductance coil 11 and the second mutual inductance coil 21 is more than one, the first mutual inductance coil 11 and the second mutual inductance coil 21 are connected to form multiple channels for measurement, so as to measure different power lines respectively. For example, the number of the first mutual inductance coil 11 and the second mutual inductance coil 21 is three, so as to measure three-phase power lines of the electrical equipment respectively.
[0047] It should be noted that after the first mutual inductance coil 11 and the second mutual inductance coil 21 are connected, the first mutual inductance coil 11 and the second mutual inductance coil 21 form a current transformer with a core and a multi-turn coil wound around the core. Two connection terminals connected to the coil are arranged on the first mutual inductance coil 11 and / or the second mutual inductance coil 21, so as to lead out the current signal of the current transformer through the two connection terminals, and calculate the current on the power line of the electrical equipment through the current signal.
[0048] As an example of the measurement process of the electrical detection device, when measuring the current of the power line of the electrical equipment, the power line to be measured is inserted into the measurement channel formed by the connection of the first mutual inductance coil 11 and the second mutual inductance coil 21, and the positive and negative poles of the ammeter are connected to the two connection terminals of the current transformer respectively. The current measured by the ammeter multiplied by the transformation ratio of the current transformer is the current in the power line. For example, the power line passes through the measurement channel formed by the connection of the first mutual inductance coil 11 and the second mutual inductance coil 21 by 1 turn (i.e. the power line directly passes through the middle of the current transformer), the transformation ratio of the current transformer is 100:5, and if the current measured by the ammeter is 4A, the current in the power line of the electrical equipment is 4*(100:5) = 80A.
[0049] In some embodiments of the present application, the first mutual inductance coil 11 and the second mutual inductance coil 21 each have an arc-shaped core inside, when the first mutual inductance coil 11 and the second mutual inductance coil 21 are connected, the two arc-shaped cores form a ring-shaped core, so that a magnetic flux loop is generated when current flows through the ring-shaped core, and the coil wound on the core generates induced current. In some embodiments of the present application, the arc-shaped core inside the first mutual inductance coil 11 (or the second mutual inductance coil 21) can also be wound with a multi-gate coil and provided with corresponding connection terminals.
[0050] It can be understood that the multi-gate coils can also be wound on the arc-shaped cores inside the first mutual inductance coil 11 and the second mutual inductance coil 21 respectively, and the two sets of multi-gate coils can be connected to form a loop through external connection terminals.
[0051] As an example, refer to Figure 3 , Figure 3 An internal structure diagram of the first mutual inductance coil 11 in an embodiment of the present application is shown, wherein the first mutual inductance coil 11 includes an arc-shaped core 1101 and a coil 1102 wound on the arc-shaped core 1101, the arc-shaped core 1101 and the coil 1102 are wrapped in an arc-shaped shell 1103, similarly, the second mutual inductance coil 21 can also be provided as shown in Figure 3 so that when the first mutual inductance coil 11 and the second mutual inductance coil 21 are connected, a current transformer including a ring-shaped core and a coil wound on the core is formed.
[0052] In an embodiment of the present application, by providing the first mutual inductance coil 11 in the upper cover 10 and the second mutual inductance coil 21 in the lower cover 20, after the upper cover 10 and the lower cover 20 are connected, the first connecting end 111 of the first mutual inductance coil 11 contacts the third connecting end 211 of the second mutual inductance coil 21, and the second connecting end 112 of the first mutual inductance coil 11 contacts the fourth connecting end 212 of the second mutual inductance coil 21, since at least part of the first mutual inductance coil 11 between the first connecting end 111 and the second connecting end 112 is bent away from the lower cover 20, and at least part of the second mutual inductance coil 21 between the third connecting end 211 and the fourth connecting end 212 is bent away from the upper cover 10, the first mutual inductance coil 11 and the second mutual inductance coil 21 can form a ring after being connected, so that a complete mutual inductance coil is formed by the first mutual inductance coil 11 and the second mutual inductance coil 21, when the electrical appliance detection device is overhauled, it only needs to separate the upper cover 10 and the lower cover 20 to overhaul or replace internal parts, without the need to disconnect the power supply of the electrical appliance during the overhaul process, which reduces the difficulty of overhauling the electrical appliance detection device while ensuring the stable operation of the electrical appliance.
[0053] In some embodiments of the present application, refer to Figure 4 and Figure 5 ,Figure 4 Fig. 1 shows a schematic diagram of an upper cover 10 according to an embodiment of the present application, Figure 5 Fig. 2 shows a schematic diagram of a lower cover 20 according to an embodiment of the present application, wherein the first mutual inductor 11 and the second mutual inductor 21 are arc-shaped, and the central angle corresponding to the first mutual inductor 11 and the central angle corresponding to the second mutual inductor 21 are complementary angles. That is, the sum of the central angle corresponding to the first mutual inductor 11 and the central angle corresponding to the second mutual inductor 21 is 360°, and the first mutual inductor 11 and the second mutual inductor 21 form a circular mutual inductor after being connected.
[0054] Preferably, the central angle corresponding to the first mutual inductor 11 and the central angle corresponding to the second mutual inductor 21 are both 180°. It can be understood that the first mutual inductor 11 and the second mutual inductor 21 can also be semi-elliptical; or the first mutual inductor 11 and the second mutual inductor 21 form a mutual inductor in the shape of a rectangle, a triangle, a regular hexagon, etc. after being connected.
[0055] In some embodiments of the present application, the upper cover 10 has a first positioning column 14, and the lower cover 20 has a second positioning column 24. The first positioning column 14 is in contact with the outer circumferential surface of the first mutual inductor 11 away from the second mutual inductor 21, and the second positioning column 24 is in contact with the outer circumferential surface of the second mutual inductor 21 away from the first mutual inductor 11. Since the first connecting end 111 of the first mutual inductor 11 and the third connecting end 211 of the second mutual inductor 21 interfere with each other, and the second connecting end 112 of the first mutual inductor 11 and the fourth connecting end 212 of the second mutual inductor 21 interfere with each other after the first mutual inductor 11 and the second mutual inductor 21 are connected, the first mutual inductor 11 and the second mutual inductor 21 remain fixed, avoiding the loosening of the first mutual inductor 11 and the second mutual inductor 21.
[0056] Further, in some embodiments of the present application, referring to Figure 2 , Figure 4 and Figure 5 , the inner circumferential surface of the first mutual inductor 11 is provided with a first isolation wall 12, and the inner circumferential surface of the second mutual inductor 21 is provided with a second isolation wall 22. Specifically, after the upper cover 10 and the lower cover 20 are connected, the first isolation wall 12 and the second isolation wall 22 form a cylindrical isolation wall. When the power cord passes through the circular mutual inductor, the cylindrical isolation wall can avoid the power cord directly contacting the mutual inductor, thereby avoiding the inaccuracy of the measurement result of the mutual inductor.
[0057] It can be understood that the first isolation wall 12 and the second isolation wall 22 can also form a square cylinder, a triangular cylinder, etc. after being connected. It is only required that the first isolation wall 12 and the second isolation wall 22 form a corresponding passage and separate the passage from the first mutual inductor 11 and the second mutual inductor 21.
[0058] In some embodiments of the present application, the first isolation wall 12 is arranged in parallel with the first mutual inductance coil 11, and the second isolation wall 22 is arranged in parallel with the second mutual inductance coil 21, that is, the first isolation wall 12 is coaxial with and arranged in parallel with the first mutual inductance coil 11, and the second isolation wall 22 is coaxial with and arranged in parallel with the second mutual inductance coil 21, which is conducive to further reducing the influence of the first mutual inductance coil 11 and the second mutual inductance coil 21 on the power line.
[0059] Further, in some embodiments of the present application, referring to Figure 1 , Figure 2 and Figure 6 , Figure 6 a structure of the front cover 30 in the embodiments of the present application is shown, wherein the electrical appliance detection device further comprises the front cover 30, and the upper cover 10 and the lower cover 20 are detachably connected with the front cover 30. The front cover 30 has a through hole 31 opposite to the channel formed by the first mutual inductance coil 11 and the second mutual inductance coil 21, and the inner diameters of the first isolation wall 12 and the second isolation wall 22 are equal to the inner diameter of the through hole 31.
[0060] It should be noted that since the front cover 30 is connected with the upper cover 10 and the lower cover 20 at the same time, the connection strength between the upper cover 10 and the lower cover 20 can be ensured, and the separation of the upper cover 10 and the lower cover 20 can be avoided. At the same time, when the electrical appliance detection device is overhauled, the power line of the electrical appliance is still located in the through hole 31 of the front cover 30 after the upper cover 10 and the lower cover 20 are separated from the front cover 30, and the upper cover 10 and the lower cover 20 can be restored conveniently after the upper cover 10 and the lower cover 20 are connected to the front cover 30 again after the overhaul is completed. In addition, since the inner diameters of the first isolation wall 12 and the second isolation wall 22 are equal to the inner diameter of the through hole 31, the phenomenon that the power line passes through the mutual inductance coil without passing through the first isolation wall 12 and the second isolation wall 22 due to the too large inner diameter of the through hole 31 can be avoided.
[0061] Further, in some embodiments of the present application, continuing to refer to Figure 6 , the front cover 30 further has an isolation cylinder 32 surrounding the through hole 31, the inner diameters of the first isolation wall 12 and the second isolation wall 22 are equal to the inner diameter of the isolation cylinder 32, and the first isolation wall 12 and the second isolation wall 22 are in abutment with the isolation cylinder 32. After the upper cover 10 and the lower cover 20 are in abutment with the front cover 30, the isolation cylinder 32 is in abutment with the first isolation wall 12 and the second isolation wall 22, and the three together define a circular channel, which is completely isolated from the internal space of the upper cover 10 and the lower cover 20, and when the power line passes through the circular channel, the influence of the electrical devices inside the upper cover 10 and / or the lower cover 20 on the power line can be reduced.
[0062] It can be understood that the height of the first partition wall 12 and the second partition wall 22 can also be changed, so that the first partition wall 12 and the second partition wall 22 are directly inserted into the through hole 31 after the upper cover 10 and the lower cover 20 are butted against the front cover 30, thereby forming a completely isolated channel.
[0063] Further, in some embodiments of the present application, for example, for the embodiments of the electrical appliance detection device further comprising the front cover 30, referring to Figure 1 、 Figure 2 and Figure 6 , the front cover 30 further has a first connecting portion 33 and a second connecting portion 34, the first connecting portion 33 is connected with the upper cover 10, and the second connecting portion 34 is connected with the lower cover 20. That is, the front cover 30 is connected with the upper cover 10 and the lower cover 20 through the first connecting portion 33 and the second connecting portion 34 respectively, so that the connection strength between the upper cover 10 and the lower cover 20 can be guaranteed, and the upper cover 10, the lower cover 20 and the front cover 30 can be connected with each other.
[0064] Exemplarily, the first connecting portion 33 and the second connecting portion 34 can be threaded holes, buckles or hooks, and the upper cover 10 and the lower cover 20 are provided with through holes corresponding to the threaded holes or clamping blocks corresponding to the buckles, for example, a screw can pass through the through hole and cooperate with the threaded hole to connect the first connecting portion 33 and the second connecting portion 34 with the upper cover 10 and the lower cover 20 respectively, and for another example, the clamping block can be clamped with the buckle or the hook to connect the first connecting portion 33 and the second connecting portion 34 with the upper cover 10 and the lower cover 20 respectively.
[0065] Further, in some embodiments of the present application, continuing to refer to Figure 4 and Figure 5 , the upper cover 10 has a third connecting portion 13, and the lower cover 20 has a fourth connecting portion 23, the third connecting portion 13 and the fourth connecting portion 23 are butted against each other. The butting direction of the third connecting portion 13 and the fourth connecting portion 23 is perpendicular to the connecting direction of the first connecting portion 33, and the butting direction of the third connecting portion 13 and the fourth connecting portion 23 is perpendicular to the connecting direction of the second connecting portion 34. Exemplarily, the upper cover 10 and the lower cover 20 are connected in a vertical direction through the third connecting portion 13 and the fourth connecting portion 23, and the front cover 30 is connected with the upper cover 10 and the lower cover 20 in a horizontal direction through the first connecting portion 33 and the second connecting portion 34, so that the front cover 30 covers the upper cover 10 and the lower cover 20 at the same time and forms a shell, which is conducive to guaranteeing the sealing performance of the electrical components inside the electrical appliance detection device.
[0066] It can be understood that one of the third connecting portion 13 and the fourth connecting portion 23 can be a threaded hole, a buckle or a hook, and the other one can be a through hole or a clamping block corresponding thereto.
[0067] Further, in some embodiments of the present application, referring to Figure 1 and Figure 2 The upper cover 10 is further provided with a circuit board 40, the circuit board 40 is provided with a first interface 41, the first interface 41 is connected with a magnetic voltage sensor 50, the magnetic voltage sensor 50 can be adsorbed on an electric meter, so as to realize voltage measurement.
[0068] In some embodiments of the present application, the first mutual inductor 11 and the second mutual inductor 21 are respectively provided with a recess 113 and a boss 213, the recess 113 and the boss 213 are connected and matched. For example, referring to Figure 7 and Figure 8 , Figure 7 A structure diagram of the first mutual inductor 11 in the embodiments of the present application is shown, Figure 8 A structure diagram of the second mutual inductor 21 in the embodiments of the present application is shown, the first mutual inductor 11 is provided with a first connecting end 111 and a second connecting end 112, the second mutual inductor 21 is provided with a third connecting end 211 and a fourth connecting end 212, the first connecting end 111 and the second connecting end 112 of the first mutual inductor 11 are provided with a recess 113, the third connecting end 211 and the fourth connecting end 212 of the second mutual inductor 21 are provided with a boss 213, the recess 113 and the boss 213 are connected and matched, which is beneficial to ensure that the first mutual inductor 11 and the second mutual inductor 21 are aligned and the electrical conductivity between the two is ensured, and the phenomenon that the first mutual inductor 11 and the second mutual inductor 21 are not in good contact.
[0069] It should be noted that the above content about the electric appliance detection device is intended to clearly explain the implementation and verification process of the present application, and those skilled in the art can also make equivalent modifications and designs under the guidance of the present application. For example, the first mutual inductor 11 and the second mutual inductor 21 can be positioned by bolts or pins and the like; for example, the boss 213 is arranged at the first connecting end 111 and the second connecting end 112 of the first mutual inductor 11, and the recess 113 is arranged at the third connecting end 211 and the fourth connecting end 212 of the second mutual inductor 21; for example, the first connecting end 111 and the second connecting end 112 of the first mutual inductor 11 are provided with a jack, and the third connecting end 211 and the fourth connecting end 212 of the second mutual inductor 21 are provided with a plug, and the electrical connection between the first mutual inductor 11 and the second mutual inductor 21 is realized by the jack and the plug.
[0070] Further, in order to better implement the electrical appliance detection device in the embodiments of the present application, on the basis of the electrical appliance detection device, the present application further provides an electric meter box, which comprises the electrical appliance detection device of any one of the above embodiments. Since the electric meter box in the embodiments of the present application comprises the electrical appliance detection device in the above embodiments, the electric meter box has all the beneficial effects of the electrical appliance detection device in the above embodiments, which will not be described herein again.
[0071] It can be understood that the above electrical appliance detection device can also be applied to other electrical appliance devices, such as power distribution cabinets, power distribution boxes, etc.
[0072] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the detailed description of other embodiments above, which will not be described herein again.
[0073] The above has described the basic concepts, and it is obvious that the above detailed disclosure is only used as an example and does not constitute a limitation on the present application for those skilled in the art. Although it is not explicitly stated herein, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.
[0074] Meanwhile, specific words are used in the present application to describe the embodiments of the present application. As "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "one alternative embodiment" mentioned in different positions in the specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be properly combined.
[0075] Similarly, it should be noted that, in order to simplify the description of the present application and to help understand one or more utility model embodiments, sometimes multiple features are combined into one embodiment, figure or description thereof in the foregoing description of the embodiments of the present application. However, this disclosure method does not mean that the features required by the present application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the disclosed single embodiment.
[0076] In some embodiments, numbers that describe amounts, dimensions, and so forth, are used in the description of the embodiments. It should be understood that the numerical values set forth in the description of the embodiments are approximations that can vary. Unless otherwise stated, the numerical values set forth in the specification and claims have 20 percent associated thereof. Accordingly, numerical parameters recited in the specification and claims have a practical purpose to convey the scope of embodiments. However, unless otherwise indicated, each numerical value is an approximation that can vary. Numerical quantities given herein are by weight of the compositions unless specifically stated otherwise.
[0077] Each patent, patent application, publication, document, article, book, instruction manual, and / or other material cited or referenced in this application is hereby incorporated by reference in its entirety for all purposes to the same extent as if each individual publication, document, article, book, instruction manual, and / or other material were specifically and individually indicated to be incorporated by reference in its entirety for all purposes. In the event of inconsistencies between the disclosure of this application and the disclosure of the materials incorporated by reference, the disclosure of this application shall prevail.
[0078] The above describes in detail the electric appliance detection device provided by the embodiments of the present application, and the principle and implementation mode of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the method and core idea of the present application. Meanwhile, for those skilled in the art, the specific implementation mode and application range of the present application can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.
Claims
1. An electrical appliance detection device, characterized in that, The utility model relates to a kind of mutual inductance coil, including: Upper cover, the upper cover has first mutual inductance coil; Lower cover, the lower cover is detachably connected with the upper cover, the lower cover has second mutual inductance coil, and the second mutual inductance coil corresponds with the first mutual inductance coil; In the state that the upper cover and the lower cover complete connection, the first mutual inductance coil and the second mutual inductance coil are docked to form channel for measurement.
2. The appliance detection apparatus of claim 1, wherein, The first mutual inductance coil and the second mutual inductance coil are arc-shaped.
3. The appliance detection apparatus of claim 1, wherein, The first mutual inductance coil is provided with first isolation wall in inner perimeter, and the second mutual inductance coil is provided with second isolation wall in inner perimeter.
4. The appliance detection apparatus of claim 1, wherein, Also including front cover, the upper cover and the lower cover are detachably connected with the front cover; The front cover has through hole, and the through hole is opposite to the channel formed by the first mutual inductance coil and the second mutual inductance coil.
5. The appliance detection apparatus of claim 4, wherein, The front cover is also provided with isolation cylinder around the through hole; The first mutual inductance coil is provided with first isolation wall in inner perimeter, and the second mutual inductance coil is provided with second isolation wall in inner perimeter; The inner diameter of the first isolation wall and the second isolation wall is equal to the inner diameter of the isolation cylinder, and the first isolation wall and the second isolation wall are docked with the isolation cylinder.
6. The appliance detection apparatus of claim 4, wherein, The front cover is also provided with first connecting part and second connecting part; The first connecting part is connected with the upper cover, and the second connecting part is connected with the lower cover.
7. The appliance detection apparatus of claim 1, wherein The upper cover is provided with first positioning column, and the lower cover is provided with second positioning column; The first positioning column contacts with the outer peripheral surface of the first mutual inductance coil away from the second mutual inductance coil, and the second positioning column contacts with the outer peripheral surface of the second mutual inductance coil away from the first mutual inductance coil.
8. The appliance detection apparatus of claim 1, wherein, The upper cover is also provided with circuit board, and the circuit board is provided with first interface, and the first interface is connected with magnetic voltage sensor.
9. The appliance detection apparatus of claim 1, wherein, The docking end of the first mutual inductance coil and the docking end of the second mutual inductance coil are respectively provided with groove and boss, and the groove is matched with the boss.
10. The appliance detection apparatus of claim 1, wherein, The upper cover and the lower cover are respectively provided with clamping block and buckle, and the upper cover and the lower cover are detachably connected by the clamping of the clamping block and the buckle.