Power measuring device

Abstract

The utility model relates to a power measuring device, and relates to the technical field of measuring devices.The measuring device comprises a base, a shell and a supporting piece, and at least one first clamping structure is arranged on the base; the shell is detachably connected with the base, and at least one second clamping structure matched with the first clamping structure is arranged on the shell; the supporting piece is arranged on the side, close to the shell, of the base, and the supporting piece and the base are integrally arranged; a containing cavity is defined by the shell and the base, and the supporting piece is located in the containing cavity. The power measuring device provided by the utility model can solve the problem of low production efficiency caused by tedious assembly process of the power measuring device in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of measuring devices, and in particular, to a power measuring device. Background Art

[0002] Power measurement devices are common equipment in the electrical industry, and they mainly measure the power of electrical equipment by measuring current and voltage.

[0003] In the prior art, a power measuring device includes an external housing, a base, a decorative frame, and an internal circuit board and terminal structures.

[0004] However, when assembling the above structure, each component needs to be assembled separately, and some structures also need to be fastened with bolts, which results in a cumbersome assembly process and low production efficiency. Utility Model Content

[0005] The purpose of the present application is to provide a power measuring device, which can solve the problem of low production efficiency caused by the complicated assembly process of the power measuring device in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides a power measuring device, which includes a base, a shell and a support member, wherein at least one first clip-on structure is provided on the base, the shell and the base are detachably connected, and a second clip-on structure adapted to the first clip-on structure is provided on the shell; the support member is provided on a side of the base close to the shell, and the support member is integrally provided with the base, the shell and the base are enclosed to form a accommodating cavity, and the support member is located in the accommodating cavity.

[0007] Based on the above-mentioned embodiments of the present application, the power measurement device provided by the present application realizes a snap connection between the base and the shell through the first snap connection structure and the second snap connection structure. When assembling, the shell and the base can be directly snapped together. Compared with the method of connecting the shell and the base by screws in the prior art, it not only improves the assembly efficiency, but also saves materials and reduces costs. At the same time, the support is integrated on the base to replace the connection method of screw connection between the support and the base in the prior art, thereby further simplifying the assembly process, improving the assembly efficiency of the power measurement device, and solving the problem of low production efficiency caused by the cumbersome assembly process of the power measurement device in the prior art.

[0008] In some embodiments, one of the first clamping structure and the second clamping structure is a buckle, and the other of the first clamping structure and the second clamping structure is a slot, and the buckle can be clamped into the slot.

[0009] Based on the above-mentioned embodiments of the present application, the first clamping structure and the second clamping structure are specifically configured as a buckle and a slot, and the clamping connection between the base and the shell is achieved by the clamping of the buckle and the slot.

[0010] In some embodiments, the first clamping structure is a buckle, the second clamping structure is a slot, the buckle is disposed on a side of the base close to the shell, and the slot is opened on an inner wall of the shell.

[0011] Based on the above-mentioned embodiments of the present application, when the buckle is connected to the slot arranged on the inner wall of the shell, the rigidity of the shell itself and other factors will apply a force toward the accommodating cavity to the buckle during the engagement, thereby making the connection more stable.

[0012] In some embodiments, the buckle includes an elastic arm and a clamping portion, the first end of the elastic arm is connected to the base, and the second end of the elastic arm extends toward the accommodating cavity;

[0013] The clamping portion is arranged at the second end of the elastic arm, and the clamping portion can be clamped to the clamping slot.

[0014] Based on the above-mentioned embodiments of the present application, an elastic arm and a clamping portion are provided, and the clamping portion is used to engage with the clamping slot. The elasticity of the elastic arm itself is utilized to facilitate the clamping on the one hand, and to maintain the clamping on the other hand after the clamping is completed.

[0015] In some embodiments, the power measurement device further comprises a cover, the cover is detachably connected to the housing, and the cover is located on a side of the housing away from the base;

[0016] The cover is at least partially transparent, and the transparent portion is arranged opposite to the instrument panel in the accommodating cavity.

[0017] Based on the above-mentioned embodiments of the present application, compared with the method of separately setting and assembling the decorative frame in the prior art, the decorative frame is formed by setting a transparent area on the cover in the present application, which realizes the integrated setting of the cover and the decorative frame compared with the prior art, eliminates the assembly process of the cover and the decorative frame, and improves production efficiency.

[0018] In some embodiments, the power measurement device includes a circuit board, and the circuit board is configured as a double-sided board, and electronic components can be arranged on two opposite board surfaces of the circuit board.

[0019] Based on the above-mentioned embodiments of the present application, by setting the circuit board as a double-sided board, the layout area that can be provided by two circuit boards in the prior art can be achieved by a single circuit board, while avoiding short circuits between the circuit boards.

[0020] In some embodiments, the electronic components are at least partially surface mount components.

[0021] Based on the above-mentioned embodiments of the present application, by setting the electronic components as surface mount components, the components can be automatically mounted by a machine during circuit board assembly, thereby improving assembly production efficiency.

[0022] In some embodiments, at least two terminals are provided on the base, the terminals penetrate the base and partially extend outside the accommodating cavity, the terminals are electrically connected to the circuit board, and the portion of the terminals located outside the accommodating cavity can be connected to an external wire;

[0023] The terminal comprises a terminal nut, an inner screw and an outer screw, wherein the inner screw is threadedly connected to the terminal nut and electrically connected to the circuit board, and the outer screw is threadedly connected to the terminal nut and electrically connected to the external wire.

[0024] Based on the above-mentioned embodiments of the present application, a terminal is provided to connect an external wire to a measuring module such as a circuit board in the accommodating cavity during measurement. Specifically, an inner screw is provided to connect to the circuit board, an outer screw is provided to connect to the external wire, and a terminal nut is provided between the inner screw and the outer screw to achieve conduction. During assembly, the screws can be automatically tightened by automated equipment, thereby further improving assembly efficiency.

[0025] In some embodiments, the wiring nut is provided with one, the wiring nut is embedded in the base, the inner screw is threadedly connected to the wiring nut and electrically connected to the wiring nut, and the outer screw is threadedly connected to the wiring nut and electrically connected to the wiring nut; or,

[0026] There are two wiring nuts, which are respectively arranged on the inner and outer sides of the base, and are electrically connected to each other. The inner screw is threadedly connected to one of the wiring nuts and is electrically connected to it, and the outer screw is threadedly connected to the other of the wiring nuts and is electrically connected to it.

[0027] Based on the above-mentioned embodiments of the present application, the wiring nut serves as a conductive piece between the inner screw and the outer screw. The specific shape and quantity of the wiring nut are not limited. It only needs to meet the requirements of conductivity and be connected to the inner screw and the outer screw respectively. The inner screw and the outer screw are automatically connected to the wiring nut through automatic equipment during assembly, thereby improving assembly efficiency.

[0028] In some embodiments, a first gasket is sleeved on the inner screw, and the first gasket is located between the inner screw and the wiring nut; a second gasket is sleeved on the outer screw, and the second gasket is located between the outer screw and the wiring nut.

[0029] Based on the above-mentioned embodiments of the present application, by providing the first gasket and the second gasket, the possibility of loosening of the connection of the inner screw or the outer screw during use can be reduced.

[0030] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present application but do not constitute a limitation to the present application. In the accompanying drawings:

[0032] Figure 1 It is an exploded schematic diagram of a power measurement device in the prior art.

[0033] Figure 2 It is another exploded schematic diagram of a power measurement device in the prior art.

[0034] Figure 3 It is a structural schematic diagram of a power measurement device provided in an embodiment of the present application.

[0035] Figure 4 It is an exploded schematic diagram of a power measurement device provided in an embodiment of the present application.

[0036] Figure 5 It is a schematic diagram of the internal structure of a power measurement device provided in an embodiment of the present application.

[0037] Figure 6 It is a structural schematic diagram of a base in a power measurement device provided in an embodiment of the present application.

[0038] Figure 7 It is a cross-sectional schematic diagram of a power measurement device provided in an embodiment of the present application.

[0039] Description of Reference Numerals

[0040] 1. Base; 11. First snap-fit ​​structure; 12. Accommodating cavity; 13. Buckle; 131. Elastic arm; 132. Clip-fit ​​part; 2. Shell; 21. Second snap-fit ​​structure; 22. Slot; 3. Support member; 4. Cover; 41. Decorative frame; 42. Transparent part; 5. Instrument panel; 6. Circuit board; 7. Terminal; 71. Terminal nut; 72. Inner screw; 73. Outer screw; 74. First gasket; 75. Second gasket. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of this application, it should be noted that, in the absence of any contrary explanation, the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] refer to Figure 1 and Figure 2As shown in the prior art, the power measuring device includes a base 1, a shell 2, a cover 4, a decorative frame 41 and other components. When assembling, the shell 2 and the base 1 are first connected by screws. Generally, four screws are respectively set to be nailed upward from the four corners of the base 1 into the shell 2 to fix the two. Then, the cover 4 is buckled on the upper end of the shell 2, and the decorative frame 41 is fixed to the cover 4 by buckling or gluing. In the specific production and assembly process, the above structures need to be manufactured separately and assembled one by one, resulting in low production and assembly efficiency of the power measuring device.

[0048] In addition, in the prior art, the power measurement device is also provided with components such as a support member 3 and a circuit board 6, and a terminal 7 connected to an external wire is provided on the base 1, wherein the support member 3 is provided on the base 1 and connected to the base 1 by screws, and generally three or four screws are provided to tighten and fix the support member 3 and the base 1. At the same time, two circuit boards 6 are generally provided, and the two circuit boards 6 are arranged opposite to each other and connected to the base 1, and a plurality of electronic components are respectively welded on the circuit boards 6. The terminal 7 generally includes a plurality of hexagonal copper columns, and during assembly, the hexagonal copper columns need to be first inserted into the holes of the base 1, and then gaskets and hexagonal nuts are sequentially provided on the hexagonal copper columns and tightened and fixed.

[0049] In summary, the above structure in the prior art causes the assembly process of the power measuring device to be cumbersome, which ultimately leads to low production and assembly efficiency of the power measuring device.

[0050] In order to solve the above problems in the prior art, Figure 3-7 As shown in , an embodiment of the present application provides a power measuring device, which includes a base 1, a shell 2 and a support member 3, wherein at least one first clip structure 11 is provided on the base 1, the shell 2 is detachably connected to the base 1, and a second clip structure 21 adapted to the first clip structure 11 is provided on the shell 2; the support member 3 is arranged on a side of the base 1 close to the shell 2, and the support member 3 is integrally arranged with the base 1, the shell 2 and the base 1 enclose a accommodating cavity 12, and the support member 3 is located in the accommodating cavity 12.

[0051] Based on the above embodiments provided in the present application, the power measuring device provided in the present application realizes a snap connection between the base 1 and the shell 2 through the first snap connection structure 11 and the second snap connection structure 21. During assembly, the shell 2 and the base 1 can be directly snapped together. Compared with the method of connecting the shell 2 and the base 1 through screws in the prior art, it not only improves the assembly efficiency, but also saves materials and reduces costs.

[0052] At the same time, the support member 3 can also be integrated on the base 1 to replace the connection method of screw connection between the support member 3 and the base 1 in the prior art. In the specific production process, a processing method such as injection molding can be used for integrated processing and molding, thereby further simplifying the assembly process, improving the assembly efficiency of the power measuring device, and solving the problem of low production efficiency caused by the complicated assembly process of the power measuring device in the prior art.

[0053] In the present application, the first clamping structure 11 and the second clamping structure 21 can be set to any suitable structure, and the present application does not make any specific limitation on this. Figure 4 and Figure 5 As shown in , in an exemplary embodiment provided in the present application, one of the first clamping structure 11 and the second clamping structure 21 is a buckle 13, and the other of the first clamping structure 11 and the second clamping structure 21 is a slot 22, and the buckle 13 can be clamped into the slot 22.

[0054] Based on the above-mentioned embodiments provided in the present application, in the specific production and processing process, the first clip structure 11 can be set as the clip 13, and the second clip structure 21 can be set as the clip slot 22, and then the clip slot 22 and the clip 13 are correspondingly clipped to achieve a clip connection between the base 1 and the shell 2, so that the base 1 and the shell 2 can be quickly assembled when they are assembled; the first clip structure 11 can also be set as the clip slot 22, and the second clip structure 21 can be set as the clip 13, and then the clip slot 22 and the clip 13 are clipped.

[0055] In addition, in some other embodiments, the first snap-fitting structure 11 may include a snap 13 and a slot 22 at the same time. In this case, the second snap-fitting structure 21 is configured as a slot 22 and a snap 13 that are compatible with it. When the base 1 is connected to the shell 2, the snap 13 provided on the base 1 is snapped with the slot 22 provided on the shell 2, and at the same time, the slot 22 provided on the base 1 is snapped with the snap 13 provided on the shell 2, thereby realizing the snap connection between the shell 2 and the base 1.

[0056] The specific structural shape and position of the buckle 13 and the slot 22 in the present application can be selected in any appropriate manner according to actual needs, and the present application does not make any specific restrictions on this. Figure 5 and Figure 6 As shown in , in an exemplary embodiment provided in the present application, the first snap-fit ​​structure 11 is a snap 13, and the second snap-fit ​​structure 21 is a slot 22. At this time, the snap 13 can be set on a side of the base 1 close to the shell 2, and the slot 22 can be opened on the inner wall of the shell 2.

[0057] Furthermore, the buckle 13 may include an elastic arm 131 and a clamping portion 132, wherein the first end of the elastic arm 131 is connected to the base 1, and the second end of the elastic arm 131 extends toward the accommodating cavity 12; the clamping portion 132 may be arranged at the second end of the elastic arm 131, and the clamping portion 132 can be clamped into the slot 22.

[0058] Based on the above embodiments provided by the present application, when the first clamping structure 11 is set as a buckle 13 and the second clamping structure 21 is set as a slot 22, by setting the buckle 13 to include an elastic arm 131 and a clamping portion 132, the elasticity generated by the elastic arm 131 can be utilized. On the one hand, it is convenient to clamp the clamping portion 132 into the slot 22 during assembly, and on the other hand, it can ensure that the clamping portion 132 can be maintained in the slot 22 after being clamped and fixed, and is not easy to be separated. At the same time, the slot 22 is provided on the inner wall of the housing 2, and the outer wall of the housing 2 can be smooth as needed while achieving the connection, thereby improving the practicality of the device. In addition, in order to facilitate the clamping of the buckle 13, the end of the clamping portion 132 and the side facing the slot 22 can be provided with a guide structure, such as a rounded corner or chamfered structure.

[0059] Furthermore, the number of buckles 13 and slots 22 in the present application can also be set in any appropriate manner according to actual needs, see Figure 5 and Figure 6 As shown in , in an exemplary embodiment provided in the present application, eight clips 13 may be provided, the base 1 is provided with four assembly surfaces, two clips 13 are correspondingly provided on each assembly surface, and the shell 2 is provided with card slots 22 adapted to the number of the clips 13.

[0060] Based on the above embodiments provided by the present application, two buckles 13 are correspondingly arranged on each assembly surface of the base 1 to be engaged with the shell 2, thereby improving the engagement effect. In specific use, the correspondence between the slots 22 and the buckles 13 is not limited to a one-to-one correspondence. For example, a long slot 22 may be provided to engage with two, three or even more buckles 13 at the same time. The specific number and correspondence of the slots 22 and the buckles 13 may be selected in any suitable manner according to factors such as the connection strength requirements and the specific shapes of the base 1 and the shell 2, and the present application does not impose any specific restrictions on this.

[0061] In addition, in the present application, any suitable structure can be set at the connection position between the base 1 and the shell 2 to enhance the connection while satisfying the requirements of quick and convenient snap-in. For example, a step surface can be set along the upper edge of the assembly surface of the base 1 to facilitate the snap-in between the base 1 and the shell 2 while enhancing the airtightness after the connection. The specific structure can be selected in any suitable manner according to actual needs, and the present application does not impose any specific restrictions on this.

[0062] refer to Figure 4As shown in , the power measuring device may further include a cover 4, which is detachably connected to the shell 2 and is located on a side of the shell 2 facing away from the base 1; the cover 4 is at least partially transparent, and the transparent portion 42 is arranged opposite to the instrument panel 5 in the accommodating cavity 12.

[0063] Based on the above embodiments provided by the present application, the cover 4 is detachably connected to the housing 2, and a variety of connection methods including snap-on connection can be selected in specific use. At the same time, by providing a transparent portion 42 on the cover 4, the instrument panel 5 in the accommodating cavity 12 can be directly seen through the transparent portion 42 when the power measurement device is in use, so that both rapid reading and protection of the instrument panel 5 can be achieved. Compared with the method of separately providing a decorative frame 41 in the prior art, the present application achieves the same effect of the decorative frame 41 in the prior art by forming the transparent portion 42 integrally on the cover 4, while achieving rapid overall processing and simplifying assembly steps.

[0064] Specifically, the size of the transparent part 42 on the cover 4 in the present application can be selected in any suitable setting mode, and the present application does not make specific restrictions on this. For example, when the power measuring device is a pointer type, the transparent part 42 can only be set to an arc-shaped transparent area, and the corresponding position on the instrument panel 5 is set with an arc-shaped scale, and the pointer and the scale on the instrument panel 5 can be directly seen and read through the arc-shaped transparent area. For another example, when the power measuring device is an electronic display, the transparent part 42 can be set to match the position and size of the electronic display screen. Alternatively, the cover 4 can also be set as a transparent material as a whole, and the cover 4 itself has an effect similar to the decorative frame 41, and it is also convenient to process during processing. In addition, the material of the cover 4 in the present application can be set to a variety of materials including resin, and the present application does not make specific restrictions on this.

[0065] In addition, in the present application, the transparent portion 42 may also be formed on the cover 4 in other ways, see Figure 7 As shown in , in an exemplary embodiment provided by the present application, the transparent portion 42 may be a transparent plate that is independent of the main body of the cover 4. In this case, the thickness of the cover 4 and the thickness of the transparent portion 42 are independently set, so that the light transmittance of the transparent portion 42 can be ensured while the strength of the cover 4 is ensured. In some other embodiments of the present application, the transparent portion 42 may also be directly formed on the cover 4, and a concave structure is formed on the cover 4 in the area where the transparent portion 42 is located, so that the light transmittance of the transparent portion 42 can be ensured while the strength of other parts of the cover 4 is ensured.

[0066] refer to Figure 5 As shown in , the power measurement device in the present application may further include a circuit board 6 , and the circuit board 6 is configured as a double-sided board, and electronic components can be arranged on two opposite board surfaces of the circuit board 6 .

[0067] Based on the above-mentioned embodiment provided by the present application, by setting the circuit board 6 as a double-sided board, the layout area of ​​the circuit board 6 is expanded, and the layout area that can only be satisfied by two circuit boards 6 in the prior art can be realized by one circuit board 6, thereby reducing the space occupied in the accommodating cavity 12, reducing costs, and avoiding problems such as short circuits between the two circuit boards 6.

[0068] Furthermore, in the present application, at least part of the electronic components are patch components. By changing part of the plug-in electronic components in the prior art into patch components, automatic patching can be achieved by a machine during assembly, thereby improving production and assembly efficiency. In the specific assembly process, it can be selected whether to fix in the form of a patch according to the different connection requirements of different types of electronic components, and the present application does not make specific restrictions on this.

[0069] refer to Figures 5 to 7 As shown in the figure, at least two terminals 7 are also provided on the base 1, the terminals 7 penetrate the base 1 and partially extend outside the accommodating cavity 12, the terminals 7 are electrically connected to the circuit board 6, and the portion of the terminals 7 located outside the accommodating cavity 12 can be connected to an external wire; wherein, the terminals 7 may include a terminal nut 71, an inner screw 72 and an outer screw 73, the inner screw 72 is threadedly connected to the terminal nut 71 and is electrically connected to the circuit board 6, the outer screw 73 is threadedly connected to the terminal nut 71, and the outer screw 73 is electrically connected to the external wire.

[0070] Based on the above-mentioned embodiment provided by the present application, by setting the terminal 7 as a conductive piece between the circuit board 6 and the external wire, the external wire is connected to the device to be measured, and the circuit board 6 is connected to other measuring components in the accommodating cavity 12 through the wire. During measurement, the device to be measured is connected to the circuit board 6 in sequence through the external wire, the external screw 73, the wiring nut 71 and the internal screw 72, thereby achieving conduction between the device to be measured and the measuring components such as the circuit board 6, and completing the measurement.

[0071] Specifically, an inner screw 72, a wiring nut 71 and an outer screw 73 are provided to replace the hexagonal copper column and other structures in the prior art. During assembly, the wiring nut 71 can be pre-embedded in the base 1 by welding or the like, and then the inner screw 72 and the outer screw 73 only need to be tightened on the wiring nut 71 respectively. The tightening process in this process can be automatically completed by automated equipment, thereby improving assembly efficiency.

[0072] Furthermore, in the prior art, in order to ensure the conductive effect inside and outside the base 1, the main body of the terminal 7 is set as a hexagonal copper column. Due to the influence of the copper price, the cost of the terminal 7 itself is relatively high. In the present application, the inside and outside of the base 1 can be connected by a terminal nut 71 embedded in the base 1. At this time, it is only necessary to set the terminal nut 71 to copper, and the inner screw 72 and the outer screw 73 can be set to any conductive material including steel, thereby reducing the demand for copper, thereby further reducing the equipment cost.

[0073] In the present application, a wiring nut 71 may be provided, wherein the wiring nut 71 is embedded in the base 1 , an inner screw 72 is threadedly connected to the wiring nut 71 and is electrically connected to the wiring nut 71 , and an outer screw 73 is threadedly connected to the wiring nut 71 and is electrically connected to the wiring nut 71 .

[0074] Alternatively, two wiring nuts 71 can be provided, and the two wiring nuts 71 are respectively provided on the inner and outer sides of the base 1, and the two wiring nuts 71 are electrically connected to each other, the inner screw 72 is threadedly connected to one wiring nut 71 and electrically connected thereto, and the outer screw 73 is threadedly connected to the other wiring nut 71 and electrically connected thereto.

[0075] Based on the above embodiments provided by the present application, when there is one wiring nut 71, the wiring nut 71 directly penetrates the base 1 as a connector and a conductive member between the inner screw 72 and the outer screw 73, and when there are two wiring nuts 71, the two wiring nuts 71 located inside and outside the base 1 are connected and conductive to each other, and then respectively connected and conductive to the inner screw 72 and the outer screw 73. Specifically, a suitable connection method can be selected according to the actual processing flow. For example, when the wiring nut 71 is processed and assembled together with the base 1, a through hole can be pre-set on the base 1. At this time, only one wiring nut 71 needs to be embedded and fixed in the base 1. When the wiring nut 71 needs to be set separately after the base 1 is processed, the two wiring nuts 71 can be fixed on the base 1 from the inside and outside, respectively, and then a through hole is drilled between the two wiring nuts 71 to achieve electrical connection. The specific selection can be made according to the actual processing situation, and the present application does not make specific restrictions on this.

[0076] In the present application, the number and installation position of the terminal 7 can be selected in any appropriate manner according to actual needs, see Figure 7As shown in , in an exemplary embodiment provided by the present application, the terminal 7 can be arranged at the bottom of the base 1, and at the same time, seven terminals 7 are arranged at the bottom of the base 1, including three terminals 7 for voltage input and four terminals 7 for current input. In some other embodiments of the present application, the terminal 7 can also be arranged at the side of the base 1, and at the same time, the number of the terminal 7 can also be set to any appropriate number, which can be set according to the usage habits and the specific measurement principle of the power measurement device, and the present application does not make any specific restrictions on this.

[0077] refer to Figure 7 As shown in , the inner screw 72 may also be provided with a first gasket 74 , the first gasket 74 being located between the inner screw 72 and the wiring nut 71 , and the outer screw 73 may be provided with a second gasket 75 , the second gasket 75 being located between the outer screw 73 and the wiring nut 71 .

[0078] Based on the above embodiments provided by the present application, the stability of the connection between the inner screw 72 and the wiring nut 71 is ensured by setting the first gasket 74, and the stability of the connection between the outer screw 73 and the wiring nut 71 is ensured by setting the second gasket 75. In specific use, the types and quantities of the first gasket 74 and the second gasket 75 can be selected in any suitable manner. For example, the first gasket 74 can include two flat washers and one spring washer, and similarly, the second gasket 75 can also include two flat washers and one spring washer. Specifically, any suitable selection can be made according to the connection requirements, and the present application does not impose any specific restrictions on this.

[0079] In addition, it should be noted that in addition to the support member 3 and the circuit board 6, other components for measurement are also provided in the accommodating cavity 12 in the present application. For example, a driving component for driving the pointer to rotate can be provided in the support member 3. For example, components such as resistors for protecting the circuit board 6 can be provided. Any suitable structure and components can be selected in specific use. Since the present application does not involve improvements to this part of the structure, it will not be repeated here.

[0080] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0081] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0082] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A power measurement device, characterized in that: The power measurement device comprises: The base is provided with at least one first clamping structure; A shell, detachably connected to the base, wherein the shell is provided with at least one second clamping structure adapted to the first clamping structure; A support member is arranged on a side of the base close to the shell, and the support member is integrally arranged with the base; The shell and the base are enclosed to form a receiving cavity, and the supporting member is located in the receiving cavity.

2. The power measurement device according to claim 1, characterized in that: One of the first clamping structure and the second clamping structure is a buckle, and the other of the first clamping structure and the second clamping structure is a slot, and the buckle can be clamped into the slot.

3. The power measurement device according to claim 2, characterized in that: The first clamping structure is a buckle, and the second clamping structure is a slot. The buckle is arranged on a side of the base close to the shell, and the slot is formed on an inner wall of the shell.

4. The power measurement device according to claim 3, characterized in that: The buckle comprises an elastic arm and a clamping portion, the first end of the elastic arm is connected to the base, and the second end of the elastic arm extends toward the accommodating cavity; The clamping portion is arranged at the second end of the elastic arm, and the clamping portion can be clamped to the clamping slot.

5. The power measurement device according to claim 1, characterized in that: The power measurement device further comprises a cover, which is detachably connected to the housing and is located on a side of the housing away from the base; The cover is at least partially transparent, and the transparent portion is arranged opposite to the instrument panel in the accommodating cavity.

6. The power measurement device according to claim 1, characterized in that: The power measurement device comprises a circuit board, which is configured as a double-sided board, and electronic components can be arranged on two opposite board surfaces of the circuit board.

7. The power measurement device according to claim 6, characterized in that: At least part of the electronic components are surface mount components.

8. The power measurement device according to claim 6, characterized in that: At least two terminals are arranged on the base, the terminals penetrate the base and partially extend outside the accommodating cavity, the terminals are electrically connected to the circuit board, and the portion of the terminals located outside the accommodating cavity can be connected to an external wire; The terminal comprises a terminal nut, an inner screw and an outer screw, wherein the inner screw is threadedly connected to the terminal nut and electrically connected to the circuit board, and the outer screw is threadedly connected to the terminal nut and electrically connected to the external wire.

9. The power measurement device according to claim 8, characterized in that: The wiring nut is provided with one, the wiring nut is embedded in the base, the inner screw is threadedly connected to the wiring nut and electrically connected to the wiring nut, and the outer screw is threadedly connected to the wiring nut and electrically connected to the wiring nut; or, There are two wiring nuts, which are respectively arranged on the inner and outer sides of the base, and are electrically connected to each other. The inner screw is threadedly connected to one of the wiring nuts and is electrically connected to it, and the outer screw is threadedly connected to the other of the wiring nuts and is electrically connected to it.

10. The power measurement device according to claim 8, characterized in that: A first gasket is sleeved on the inner screw, and the first gasket is located between the inner screw and the wiring nut. A second gasket is sleeved on the outer screw, and the second gasket is located between the outer screw and the wiring nut.

Images