An electric meter that is easy to assemble
By designing the transformer base and the meter base into an integrated molding structure, the compression damage, abnormal noise and space occupation problems of existing meters during assembly are solved, and higher stability and heat dissipation performance are achieved, while reducing production costs and time.
Patent Information
- Application Number
- CN202420982261.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-08
AI Technical Summary
During the assembly process of the transformer base and the meter base, existing meter meter may have problems such as crushing the transformer, difficulty in achieving high-quality interference coordination, easy to shake and produce abnormal noise after assembly, and excessive space occupied by the meter base, which affects the stability and heat dissipation performance of the product.
By designing the transformer base and the meter base into an integrated molding structure, the mold and assembly process are reduced, the production efficiency and product stability are improved, and the transformer is filled by glue-filling and curing to fix its position.
The close integration of transformers and meter base is achieved, which reduces abnormal noise and space occupation during assembly, improves product stability and heat dissipation performance, and reduces production costs and time.
Smart Images
Figure CN222719616U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electronic instruments, and in particular to an electric meter that is easy to assemble. Background Art
[0002] The electric meter is mainly composed of a transformer assembly, a meter housing, a relay, etc. The transformer assembly includes a transformer and a transformer housing. The transformer is arranged in the transformer housing. The transformer housing includes a transformer base and a transformer upper cover. The meter housing includes a meter upper cover and a meter base. The transformer housing and the meter housing are independently processed and formed and then assembled. First, the transformer housing is put on the relay pin, and then the relay is assembled on the meter base. Finally, the transformer base is fixedly connected to the meter base.
[0003] The transformer base is usually fixed on the meter base by spot welding or riveting. This assembly method has the following problems: 1. The transformer is easily crushed during spot welding or riveting; 2. It is difficult to achieve a high-quality interference fit between the transformer base and the meter base during assembly, and it is easy to shake and produce abnormal noise after assembly; 3. Because the meter base needs to design an installation position for the transformer base, the transformer assembly occupies more space on the meter base, resulting in a reduction in the conductive metal area of the relay, which is not conducive to heat dissipation and cooling. Utility Model Content
[0004] To solve the above problems, the present disclosure provides an electric meter that is easy to assemble.
[0005] Specifically, the technical solution of the present disclosure is:
[0006] An easy-to-assemble electric meter comprises an electric meter housing and a mutual inductor assembly. The electric meter housing comprises an electric meter upper cover and an electric meter base. The mutual inductor assembly comprises a mutual inductor and a mutual inductor housing. The mutual inductor housing comprises at least a mutual inductor base. The electric meter base and the mutual inductor base are integrally formed.
[0007] In one embodiment, the electric meter base includes a first bottom and a circumferential portion, the first bottom is used to install internal components of the electric meter, and the circumferential portion of the electric meter base is arranged around the first bottom; the transformer base includes a second bottom and a side wall, and the side wall of the transformer base is arranged around the second bottom.
[0008] In one embodiment, the first bottom is a sheet structure, and the circumferential portion of the electric meter base is a circle of first annular walls protruding from the first bottom toward the upper cover of the electric meter; the second bottom is a part of the first bottom, and the side wall of the transformer base is a circle of second annular walls protruding from the first bottom toward the upper cover of the electric meter, and the second annular wall is located in the area enclosed by the first annular wall.
[0009] In one embodiment, the transformer housing only includes a transformer base, and the transformer base is filled with the assembled transformer by means of glue injection and curing.
[0010] In one embodiment, the transformer housing further includes a transformer upper cover, and the transformer upper cover is disposed on the transformer base.
[0011] In one embodiment, the electric meter further comprises a relay, which is fixed on the first bottom and located in the electric meter housing. The mutual inductor assembly is arranged in parallel with the relay, and the mutual inductor is also used to limit the relay when assembling the relay.
[0012] In one embodiment, in the thickness direction of the electric meter, the transformer housing is located between the relay and the first bottom.
[0013] In one embodiment, the relay includes at least one pin, the number of transformer components corresponds to the number of the pins, the transformer housing is provided with a through hole arranged crosswise with the first bottom, and the pin is inserted into the corresponding through hole.
[0014] In one embodiment, the number of the transformer housings is two, and the relay includes two pins, and the two pins are respectively plugged and matched with the through holes of the two transformer housings.
[0015] In one embodiment, the through holes and the pins are arranged along the thickness direction of the electric meter and are perpendicular to the first bottom.
[0016] The embodiments of the present disclosure have at least one of the following beneficial effects:
[0017] 1. The integrated design of transformer base and meter base reduces molds, assembly processes, costs and cycles.
[0018] 2. The integrated design of the transformer base and the meter base reduces the space occupied by the transformer assembly in the meter. The transformer base is equivalent to being embedded in the first bottom, while the transformer base in the prior art is equivalent to being stacked on the first bottom. Compared with the prior art, the present disclosure saves the internal space of the meter in the thickness direction of the meter. Since the relay and the transformer housing are arranged along the thickness direction of the meter, the saved internal space of the meter can be used for the relay structure design, which is conducive to improving product performance.
[0019] 3. The pins of the relay and the through-holes of the transformer housing are perpendicular to the first bottom, so that the pins of the relay are directly inserted into the through-holes along the thickness direction of the meter without bending, and the overall arrangement is compact and the space utilization rate is high. In addition, the integrated design of the transformer base and the meter base is conducive to the reasonable allocation of the space in the thickness direction of the meter, which is more suitable for the space design requirements of miniaturized and compact meters.
[0020] 4. In the present disclosure, since the transformer base is integrally formed on the meter base, when the relay is assembled on the meter base, the transformer assembly can limit the assembly of the relay, and the relay has better stability during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a structural diagram of an electric meter according to an embodiment of the present disclosure;
[0022] Figure 2 for Figure 1 The structural diagram of the meter base and the transformer base is shown. DETAILED DESCRIPTION
[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0024] The problems of the above-mentioned existing electric meters are mainly caused by the fact that the transformer base and the electric meter base are two separate and independently formed parts. During the assembly process of the electric meter, the two parts are assembled by spot welding or riveting, resulting in the above-mentioned various problems. The present disclosure solves the problems of the above-mentioned existing electric meters by designing the transformer base and the electric meter base into an integrally formed structure.
[0025] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] In one embodiment, if Figure 1 As shown, the electric meter provided by the present disclosure includes an electric meter housing, a relay 5, and a transformer assembly, etc. The electric meter housing includes an electric meter upper cover (not shown) and an electric meter base 1, the relay 5 is located in the electric meter housing, and the transformer assembly includes a transformer 2, a transformer upper cover 3, and a transformer base 4, the transformer upper cover 3 is covered on the transformer base 4 to form a transformer housing, and the transformer 2 is partially located in the transformer housing. In other embodiments, in order to reduce costs, the transformer upper cover 3 may not be provided, and glue may be poured into the transformer base 4 to fix the transformer 2, and subsequent assembly work may be performed after the glue is cured.
[0027] See also Figure 2 The transformer base 4 and the meter base 1 are integrally formed by injection molding, and the transformer base 4 is arranged at the bottom of the meter base 1. Surrounding the bottom of the meter base 1 is the circumferential portion of the meter base 1, which is mainly used to connect with the meter cover.
[0028] Since the transformer base 4 and the meter base 1 are integrally formed, a set of molds can be saved during the meter manufacturing process, reducing production costs. At the same time, there is no problem of crushing the transformer during assembly, shaking after assembly to produce abnormal noise, and occupying more space on the meter base. The ease of manufacture, product performance and product quality of the meter are significantly improved. In addition, the relay assembly process is also changed accordingly, so that when assembling the relay, the relay can be limited by the transformer assembly, which is conducive to improving the stability of the relay after assembly.
[0029] In this embodiment, a part of the bottom of the meter base 1 directly serves as the bottom of the transformer base 4. The side wall of the transformer base 4 and the circumferential portion of the meter base 1 are respectively annular walls protruding from the bottom of the meter base 1 toward the meter cover. The circumferential portion of the meter base 1 surrounds the side wall of the transformer base 4, and the structure is compact. In the thickness direction h of the meter, compared with the existing meter, the present invention saves a thickness space of the bottom of the transformer base 4 inside the meter, so that compared with the aforementioned existing meter, the height of the transformer base protruding from the bottom of the meter base is significantly reduced, further reducing the space occupied by the transformer assembly in the thickness direction h of the meter. Accordingly, see Figure 1 Since the transformer housing is located between the relay 5 and the bottom of the meter base 1 in the meter thickness direction h, the space available for the structural design of the relay 5 in the meter thickness direction h is increased, and there is more space for absorbing the product assembly tolerance and increasing the width of the product copper bar, so as to better meet the performance requirements of the relay such as improving heat dissipation. In other embodiments, the bottom of the transformer base 4 can also be a sheet-shaped portion that is integrally formed on the bottom surface of the meter base 1 and is distinguished from the bottom of the meter base 1.
[0030] In addition, in this embodiment, the pin 51 of the relay 5 is arranged along the thickness direction h of the meter, the transformer housing is provided with a through hole A along the thickness direction h of the meter, the pin 51 is inserted into the through hole A along the thickness direction h of the meter, the pin 51 does not need to be bent, the structure is compact, and the space utilization rate is high.
[0031] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. It should be noted that any modification, equivalent replacement, improvement, etc. made by a person skilled in the art within the spirit and principle of the present disclosure after reading this specification should be included in the protection scope of the present disclosure.
Claims
1. An electric meter that is easy to assemble, comprising an electric meter housing and a mutual inductor assembly, wherein the electric meter housing comprises an electric meter upper cover and an electric meter base, the mutual inductor assembly comprises a mutual inductor and a mutual inductor housing, and the mutual inductor housing comprises at least a mutual inductor base, characterized in that: The electric meter base and the transformer base are integrally formed.
2. The easily assembled electric meter according to claim 1, characterized in that: The meter base includes a first bottom and a circumferential portion, the first bottom is used to install internal components of the meter, and the circumferential portion of the meter base is arranged around the first bottom; the transformer base includes a second bottom and a side wall, and the side wall of the transformer base is arranged around the second bottom.
3. The easily assembled electric meter according to claim 2, characterized in that: The first bottom is a sheet structure, and the circumferential portion of the meter base is a circle of first annular walls protruding from the first bottom toward the meter cover; the second bottom is a part of the first bottom, and the side wall of the transformer base is a circle of second annular walls protruding from the first bottom toward the meter cover, and the second annular wall is located in the area enclosed by the first annular wall.
4. The easily assembled electric meter according to claim 2, characterized in that: The transformer housing only includes a transformer base, and the transformer base is filled with and assembled with a transformer by means of glue injection and curing.
5. The easily assembled electric meter according to claim 2, characterized in that: The transformer housing also includes a transformer upper cover, which is arranged on the transformer base.
6. The easily assembled electric meter according to claim 2, characterized in that: The electric meter also includes a relay, which is fixed on the first bottom and located in the electric meter housing. The mutual inductor assembly is arranged in parallel with the relay, and the mutual inductor is also used to limit the relay when assembling the relay.
7. The easily assembled electric meter according to claim 6, characterized in that: In the thickness direction of the electric meter, the transformer housing is located between the relay and the first bottom.
8. The easily assembled electric meter according to claim 6 or 7, characterized in that: The relay comprises at least one pin, the transformer housing is provided with a through hole arranged crosswise with the first bottom, and the pin is inserted into the corresponding through hole.
9. The easily assembled electric meter according to claim 8, characterized in that: The number of the transformer housings is two, and the relay comprises two pins, which are respectively plugged and matched with the through holes of the two transformer housings.
10. The easily assembled electric meter according to claim 8, characterized in that: The through holes and the pins are arranged along the thickness direction of the electric meter and are perpendicular to the first bottom.