Terminal seat assembly and electric energy meter
By setting up brackets and fixed structures between the terminal seats of the electrical meter and the PCBA board, the problem of unable to standardize the encapsulation of the existing technology in the existing technology in the existing technology, and achieved a more efficient production process and lower cost.
Patent Information
- Application Number
- CN202323429051.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-15
AI Technical Summary
The existing power meter terminal block assembly cannot be standardized, resulting in high production costs and high human resources consumption.
A terminal seat component is designed, including the terminal, the terminal stand bracket and the sampling device. By setting the terminal bracket between the terminal and the PCBA board, and setting the SCN terminal fixed structure on the bracket, the terminal and PCBA board are achieved Stable support and standardized packaging between them.
Through standardized packaging, the production efficiency and quality of the electric energy meter are improved, the production cost is reduced, and the steps of artificial welding are avoided.
Smart Images
Figure CN222420334U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric energy meters, in particular to a terminal seat component and an electric energy meter. Background Art
[0002] The watt-hour meter is an instrument device for measuring electric power. Each watt-hour meter has a terminal block, which serves as a link between strong and weak currents. Normally, strong currents in external devices flow through the terminal block of the watt-hour meter, and the current signal is sampled through the sampling device on the terminal block. The sampled current signal is then input into the chip on the PCBA board through the communication connection line for calculation, thereby realizing power measurement.
[0003] However, the physical connection between the existing electric energy meter terminal block and the PCBA board does not have any supporting structure and is two independent devices, which results in the inability to perform standardized packaging of the electric energy meter terminal block and the PCBA board during the production process and requires manual welding, resulting in high production costs for the electric energy meter and high human resource consumption. Utility Model Content
[0004] The utility model provides a terminal seat component and an electric energy meter, which are used to solve the technical problem that the existing electric energy meter terminal seat component cannot be packaged in a standardized manner.
[0005] In a first aspect, the utility model provides a terminal block assembly, comprising: a terminal block, the terminal block comprising a plastic part and a terminal post embedded in the plastic part;
[0006] A terminal base bracket, the terminal base bracket is installed between the terminal base and the PCBA board, and the terminal base bracket is fixedly connected to the terminal base;
[0007] A sampling device is electrically connected to the terminal.
[0008] Furthermore, the binding posts include current binding posts and voltage binding posts, the input end of the sampling device is electrically connected to the current binding posts, and the output end of the sampling device is electrically connected to the PCBA board.
[0009] Furthermore, the output end of the sampling device is electrically connected to the PCBA board through an SCN terminal line.
[0010] Furthermore, the SCN terminal line is provided with an SCN terminal head.
[0011] Furthermore, the terminal seat bracket is provided with an SCN terminal head fixing structure for fixing the SCN terminal head.
[0012] Furthermore, the SCN terminal head fixing structure is provided with an SCN terminal head limiting groove, and the SCN terminal head is inserted into the SCN terminal head limiting groove.
[0013] Furthermore, the PCBA board is provided with an SCN terminal head socket, and the SCN terminal head is plug-in connected to the SCN terminal head socket.
[0014] Furthermore, a positioning column is provided on the current terminal, and a groove is provided on the terminal block bracket, and the positioning column passes through the groove and is welded to the PCBA board.
[0015] Furthermore, the sampling device is a current transformer or a manganese-copper sampler.
[0016] In a second aspect, the utility model provides an electric energy meter provided with a terminal seat assembly as described in the first aspect above.
[0017] Compared with the prior art, the terminal seat assembly and the electric energy meter provided by the utility model, by arranging a terminal seat bracket between the terminal seat and the PCBA board, and arranging an SCN terminal head fixing structure for fixing the SCN terminal head on the terminal seat bracket, so that the support between the terminal seat of the electric energy meter and the PCBA board is more stable, and the terminal seat assembly can be packaged in a standardized manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic diagram of the overall structure of a terminal block assembly provided by an embodiment of the utility model;
[0019] Figure 2 A schematic diagram of an exploded structure of a terminal base assembly provided in an embodiment of the utility model;
[0020] Figure 3 A schematic diagram of the packaging structure of the terminal base assembly provided in an embodiment of the utility model;
[0021] Figure 4 A schematic structural diagram of a terminal block bracket provided in an embodiment of the utility model.
[0022] Among them, 10 is a terminal seat, 11 is a plastic part, 12 is a terminal post, 121 is a current terminal post, 122 is a voltage terminal post, 123 is a positioning post, 20 is a terminal seat bracket, 21 is an SCN terminal head fixing structure, 211 is an SCN terminal head limiting groove, 22 is a groove, 30 is a PCBA board, 31 is an SCN terminal head socket, 40 is a sampling device, 41 is the input end of the sampling device, 42 is the output end of the sampling device, 50 is an SCN terminal line, and 51 is an SCN terminal head. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0024] In order to make the description of the disclosed content more detailed and complete, the following is an illustrative description of the implementation method and specific examples of the utility model; however, this is not the only form of implementing or using the specific examples of the utility model. The implementation method covers the features of multiple specific examples and the method steps and their sequence for constructing and operating these specific examples. However, other specific examples can also be used to achieve the same or equal functions and step sequences. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.
[0026] In the description of the embodiments of the present invention, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two, and other quantifiers are similar. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention, and the embodiments of the present application and the features in the embodiments may be combined with each other without conflict.
[0027] In order to solve the technical problem that the existing electric energy meter terminal seat assembly cannot be packaged in a standardized manner, the utility model provides a terminal seat assembly and an electric energy meter, please refer to Figure 1-2 , Figure 1 The overall structure diagram of a terminal block assembly provided by an embodiment of the utility model is as follows: Figure 2An exploded structural schematic diagram of a terminal seat assembly provided for an embodiment of the utility model, the assembly includes a terminal seat 10, the terminal seat 10 includes a plastic part 11 and a terminal post 12 embedded in the plastic part; a terminal seat bracket 20, the terminal seat bracket 20 is installed between the terminal seat 10 and the PCBA board 30, and the terminal seat bracket 20 is fixedly connected to the terminal seat 10; a sampling device 40, the sampling device 40 is electrically connected to the terminal post 12. Specifically, in the embodiment of the utility model, the terminal seat assembly is composed of three parts: the terminal seat 10, the terminal seat bracket 20 and the sampling device 40. The strong current in the external device flows through the terminal seat 10 of the electric energy meter, and the current signal is sampled by the sampling device 40 in the terminal seat assembly, and the sampled current signal is input to the chip of the PCBA board for calculation, thereby realizing electricity metering.
[0028] The terminal block is composed of a terminal post 12 and a plastic part 11 supporting the terminal post 12. The terminal post 12 is embedded in the plastic part 11. The plastic part 11 plays a role in positioning and supporting the terminal block. In the embodiment of the utility model, please refer to Figure 3 , Figure 3 The schematic diagram of the packaging structure of the terminal seat assembly provided in the embodiment of the utility model combines the three parts of the terminal seat 10, the terminal seat bracket 20 and the sampling device 40 together to form an integral terminal seat assembly, so that the reproduction process is changed from multiple parts to an integral part, which facilitates the assembly and packaging of the production process and effectively improves the production efficiency of the electric energy meter.
[0029] Furthermore, the terminal 12 includes a current terminal 121 and a voltage terminal 122, the input end 41 of the sampling device is electrically connected to the current terminal 121, and the output end 42 of the sampling device is electrically connected to the PCBA board 30. Specifically, in the embodiment of the utility model, the terminal 12 clamps the wires of the external device through metal screws or springs, so that the high current terminal 12 of the external device is transmitted to the sampling device, thereby solving the problem of circuit shunting in the electric energy meter.
[0030] Furthermore, the output end 42 of the sampling device is electrically connected to the PCBA board 30 via an SCN terminal line 50. In the embodiment of the utility model, the current signal collected by the sampling device 40 is input to the chip of the PCBA board 30 via the SCN terminal line, wherein the SCN terminal line is generally used to connect and control various devices, sensors, actuators and controllers, etc., and can transmit control signals, data signals and power signals to achieve communication and coordination between devices.
[0031] Furthermore, the SCN terminal wire 50 is provided with an SCN terminal head 51. Specifically, in the embodiment of the utility model, one end of the SCN terminal wire 50 is provided with an SCN terminal head 51, and the SCN terminal head 51 can be directly plugged into the PCBA board, which makes the terminal base assembly more uniform, realizes the standardization of parts, is more convenient for production and assembly, and improves production efficiency compared to the traditional manual welding of the soft wire to the PCBA board.
[0032] For further information, please refer to Figure 4 , Figure 4 A schematic diagram of the structure of a terminal seat bracket provided in an embodiment of the utility model, wherein the terminal seat bracket 20 is provided with an SCN terminal head fixing structure 21 for fixing the SCN terminal head 51. Specifically, in the embodiment of the utility model, the SCN terminal head fixing structure 21 is provided on the terminal seat bracket 20, so as to avoid the SCN terminal line 50 being directly connected to the PCBA board, and the SCN terminal head fixing structure can fix and limit the SCN terminal head, so that the SCN terminal line is more firmly connected to the terminal seat assembly.
[0033] Furthermore, the SCN terminal head fixing structure 21 is provided with an SCN terminal head limiting groove 211, and the SCN terminal head 51 is plugged into the SCN terminal head limiting groove 211. Specifically, in the embodiment of the utility model, the SCN terminal head 51 is plugged into the SCN terminal head limiting groove 211, which can ensure that the SCN terminal head 51 is accurately limited in each dimension after being assembled to the terminal seat bracket 20, thereby preventing the SCN terminal head 51 from being unable to be accurately plugged into the PCBA board.
[0034] Furthermore, the PCBA board 30 is provided with an SCN terminal head socket 31, and the SCN terminal head 51 is pluggably connected to the SCN terminal head socket 31. Specifically, in the embodiment of the utility model, the SCN terminal head is plugged into the PCBA board, which effectively avoids manual welding, makes the terminal seat assembly more uniform, and saves labor costs.
[0035] Further, a positioning column 123 is provided on the current terminal post 121, a groove 22 is provided on the terminal seat bracket, and the positioning column 123 passes through the groove 22 and is welded to the PCBA board 30. Specifically, in the embodiment of the utility model, a positioning column 123 is provided on the terminal seat, specifically provided on the current terminal post 121, and the positioning column 123 passes through the groove 22 and is welded to the PCBA board 30, so that the connection between the terminal seat 10 and the PCBA board 30 is more firmly established.
[0036] Furthermore, the sampling device 40 is a current transformer or a manganese copper sampler. Specifically, in the embodiment of the utility model, the sampling device 40 can be a current transformer, which is composed of a closed iron core and a coil winding. According to the principle of electromagnetic induction, the current to be measured of the primary winding is converted into a small signal of the secondary winding, and then the current conversion of the small signal is performed through a resistor and other circuits, and the converted current signal is input into the chip of the PCBA for measurement. The sampling device can also use a manganese copper sampler, which is made of a sampling resistor made of manganese copper material. The sampling resistor is used for sampling current signals. When current flows through the sampling resistor, a voltage drop signal is generated at both ends of the resistor. The voltage drop signal can be used as a sampling small signal and then processed by an amplification circuit and input into the chip of the PCBA for measurement.
[0037] The embodiment of the utility model further provides an electric energy meter, which is provided with a terminal seat assembly as described in the above embodiment. Specifically, the electric energy meter in the embodiment of the utility model, by adopting the above terminal seat assembly, can standardize the terminal seat and the PCBA board for packaging, effectively improving the production quality and production efficiency of the electric energy meter.
[0038] The utility model provides a terminal seat assembly and an electric energy meter, the terminal seat assembly comprising: a terminal seat, the terminal seat comprising a plastic part and a terminal post embedded in the plastic part; a terminal seat bracket, the terminal seat bracket is installed between the terminal seat and the PCBA board, and the terminal seat bracket is fixedly connected to the terminal seat; a sampling device, the sampling device is electrically connected to the terminal post. The terminal seat assembly and the electric energy meter provided by the utility model, by arranging a terminal seat bracket between the terminal seat and the PCBA board, and arranging an SCN terminal head fixing structure for fixing the SCN terminal head on the terminal seat bracket, make the support between the terminal seat of the electric energy meter and the PCBA board more stable, and enable the terminal seat assembly to be packaged in a standardized manner.
[0039] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A terminal block assembly, characterized in that: include: A terminal block, the terminal block comprising a plastic part and a terminal post embedded in the plastic part; A terminal base bracket, the terminal base bracket is installed between the terminal base and the PCBA board, and the terminal base bracket is fixedly connected to the terminal base; A sampling device is electrically connected to the terminal.
2. The terminal base assembly according to claim 1, characterized in that: The binding posts include current binding posts and voltage binding posts, the input end of the sampling device is electrically connected to the current binding posts, and the output end of the sampling device is electrically connected to the PCBA board.
3. The terminal base assembly according to claim 2, characterized in that: The output end of the sampling device is electrically connected to the PCBA board through an SCN terminal line.
4. The terminal base assembly according to claim 3, characterized in that: The SCN terminal line is provided with an SCN terminal head.
5. The terminal base assembly according to claim 4, characterized in that: The terminal seat bracket is provided with an SCN terminal head fixing structure for fixing the SCN terminal head.
6. The terminal base assembly according to claim 5, characterized in that: The SCN terminal head fixing structure is provided with an SCN terminal head limiting groove, and the SCN terminal head is inserted into the SCN terminal head limiting groove.
7. The terminal base assembly according to claim 6, characterized in that: The PCBA board is provided with an SCN terminal head socket, and the SCN terminal head is plug-in connected to the SCN terminal head socket.
8. The terminal base assembly according to claim 7, characterized in that: The current terminal is provided with a positioning column, the terminal seat bracket is provided with a groove, and the positioning column passes through the groove and is welded to the PCBA board.
9. The terminal base assembly according to claim 3, characterized in that: The sampling device is a current transformer or a manganese copper sampler.
10. An electric energy meter, characterized in that: A terminal block assembly according to any one of claims 1 to 9 is provided.