Integrated shielding structure and electronic weighing instrument

Abstract

The utility model discloses an integrated shielding structure and an electronic weighing apparatus, the integrated shielding structure comprises a base, one side of the base is provided with an opening, and a plurality of mutually independent mounting areas are formed in the base; the shielding plate covers the opening of the base, the shielding plate comprises a plurality of shielding sections and connecting sections, the plurality of shielding sections are in one-to-one correspondence with the plurality of mounting areas, the connecting sections are arranged between the adjacent shielding sections, and each shielding section covers the corresponding mounting area; wherein the plurality of shielding sections and the connecting section are integrally formed. By means of the integral shielding plate, integrated electromagnetic shielding and heat insulation shielding of multiple installation areas can be achieved, assembling is simple, positioning and guiding can be provided for other parts installed on the shielding plate, the assembling precision of equipment can be improved conveniently, production, installation and technical maintenance are facilitated, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic scale shielding structures, and in particular to an integrated shielding structure and an electronic scale. Background Art

[0002] In order to pass the electromagnetic compatibility test, electronic weighing instruments such as weighing-type heated moisture meters need to perform electromagnetic shielding on the circuit board and sensor. The common shielding method is to add an EMC shielding plate to the circuit board and sensor area.

[0003] At present, for products with a large number of circuit boards, scattered layout and large size, it is often necessary to combine and install multiple EMC shielding plates to achieve a good shielding effect. However, a large number of EMC shielding plates are scattered, and there are often gaps at the joints of the EMC shielding plates, resulting in the actual shielding effect not meeting expectations, and increasing the number of parts in the product, causing greater cost pressure, resulting in a simultaneous increase in assembly time, labor costs and assembly error rates. Utility Model Content

[0004] The purpose of the present application is to provide an integrated shielding structure and an electronic scale to solve the technical problems existing in the prior art that shielding is achieved by combining and installing multiple EMC shielding plates, and there are often gaps at the joints of the EMC shielding plates, resulting in the actual shielding effect not meeting expectations, increasing the number of parts of the product, causing greater cost pressure, resulting in a simultaneous increase in assembly time, and increasing labor costs and assembly error rates.

[0005] To achieve the above objectives, the present application provides an integrated shielding structure in a first aspect, comprising:

[0006] A base is provided with an opening on one side, and a plurality of mutually independent installation areas are formed inside the base;

[0007] A shielding plate, which is covered at the opening of the base, and includes a plurality of shielding segments corresponding to the plurality of installation areas one by one and a connecting segment arranged between adjacent shielding segments, and each shielding segment is arranged to cover the corresponding installation area;

[0008] Wherein, the plurality of shielding segments and the connecting segment are integrally formed.

[0009] In one or more embodiments, among the plurality of connecting segments, at least one connecting segment is a positioning ridge structure protruding from the adjacent shielding segment in a direction away from the base.

[0010] In one or more embodiments, the positioning ridge structure includes a positioning plate and a connecting plate arranged on one side or both sides of the positioning plate, the positioning plate is arranged on the side of the adjacent shielding segment away from the base, and the two sides of the positioning ridge structure are respectively connected to the shielding segments on the corresponding sides.

[0011] In one or more embodiments, a flange is arranged at least partially on the outer edge of one side of the shielding plate facing the base, and at least partially the outer surface of the flange is disposed in contact with the inner wall of the base.

[0012] In one or more embodiments, a panel is arranged at the periphery of one or more of the plurality of installation areas, and at least a portion of the inner surface of the flange is arranged to fit with the outer surface of the panel.

[0013] In one or more embodiments, the base includes a plurality of the installation areas sequentially arranged along a first direction, and in the first direction, a relative distance between the plurality of shielding segments and the base gradually increases.

[0014] In one or more embodiments, the base includes a plurality of installation areas sequentially arranged along a first direction, and at least one shielding segment located in the middle cooperates with the connecting segments adjacent to both sides to form an inner concave structure protruding toward the base.

[0015] To achieve the above-mentioned object, the first aspect of the present application provides an electronic weighing instrument, comprising the integrated shielding structure described in any one of the above-mentioned embodiments.

[0016] Different from the prior art, the beneficial effects of this application are:

[0017] The integrated shielding structure of the present application can realize integrated electromagnetic shielding and heat insulation shielding of multiple installation areas through an integral shielding plate, which is easy to assemble and can provide positioning and guidance for other components installed on the shielding plate, thereby facilitating the improvement of the assembly accuracy of the equipment, facilitating production installation and technical service maintenance, and reducing labor costs;

[0018] The electronic weighing device of the present application can effectively simplify the number of components, save manufacturing costs, ensure the shielding effect of each area, and ensure the working stability of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of an implementation method of the integrated shielding structure of the present application;

[0021] Figure 2 It is a schematic diagram of the exploded structure of an embodiment of the integrated shielding structure of the present application;

[0022] Figure 3 It is a schematic cross-sectional structural diagram of an application scenario of an implementation method of the integrated shielding structure of the present application.

[0023] As shown in the figure:

[0024] Base 10; mounting area 101; annular baffle 102; enclosure 103; opening 104

[0025] Shielding plate 20 ; shielding section 201 ; avoidance hole 202 ; connecting section 203 ; flange 204 ; positioning convex ridge structure 205 ; positioning plate 2051 ; connecting plate 2052 ; inner concave structure 206 . DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of this application.

[0027] At present, electronic weighing instruments such as weighing-type heating moisture meters achieve better shielding effects by installing multiple EMC shielding plates in combination. However, the scattered EMC shielding plates often have gaps at the joints of the EMC shielding plates, resulting in the actual shielding effect not meeting expectations, and increasing the number of parts in the product, causing greater cost pressure, resulting in a simultaneous increase in assembly time, labor costs and assembly error rates.

[0028] In order to solve the above problems, the applicant has developed an integrated shielding structure, which can be applied to electronic scales such as weighing-type heated moisture meters, and is used for electromagnetic shielding of circuit structures such as circuit boards and sensors. The shielding structure adopts an integrated structure, which can effectively ensure the shielding effect of each area on the one hand, and on the other hand, it is also convenient to reduce the difficulty of assembly, reduce labor costs and assembly error rate.

[0029] Specifically, see Figure 1 , Figure 1 It is a structural schematic diagram of an implementation method of the integrated shielding structure of the present application.

[0030] like Figure 1As shown, the shielding structure includes a base 10 and a shielding plate 20. The base 10 has an opening 104 on one side, and circuit components such as circuit boards and sensors can be installed inside the opening 104.

[0031] The shielding plate 20 covers the opening 104 of the base 10 . The shielding plate 20 is an integrally formed structure and roughly matches the opening 104 of the base 10 , so that the shielding plate 20 can effectively shield the circuit elements inside the base 10 .

[0032] Specifically, in this embodiment, the shielding plate 20 can be an EMC shielding plate 20, so as to effectively achieve electromagnetic shielding and thermal insulation shielding of the circuit elements inside the base 10; in other embodiments, the shielding plate 20 can also be other types of shielding plates 20, which can be used to achieve other types of shielding of other elements inside the base 10, such as waterproof shielding.

[0033] The following is a detailed description of the matching structure of the base 10 and the shielding plate 20. Figure 2 , Figure 2 It is a schematic diagram of the explosion structure of an implementation scheme of the integrated shielding structure of the present application.

[0034] like Figure 2 As shown, a plurality of independent installation areas 101 are formed inside the base 10, and the shielding plate 20 includes a plurality of shielding segments 201 corresponding to the plurality of installation areas 101 and a connecting segment 203 arranged between adjacent shielding segments 201, and each shielding segment 201 covers the corresponding installation area 101.

[0035] Specifically, in the present embodiment, three installation areas 101 arranged in sequence along the first direction x are formed inside the base 10, and adjacent installation areas 101 can be isolated from each other by baffles. Exemplarily, an annular baffle 102 is arranged at the center of the base 10 in the present embodiment, and the annular baffle 102 can divide the interior of the base 10 into an installation area 101 located on the inner side of the annular baffle 102, and two installation areas 101 located on both sides of the annular baffle 102.

[0036] In this embodiment, the installation area 101 located in the middle can be used to install a sensor, the installation area 101 located on one side can be used to install a circuit board, and the installation area 101 located on the other side can be used to install a power module, an interface board, etc.

[0037] In other embodiments, other numbers of installation areas 101 may be formed inside the base 10, and the installation areas 101 may not be arranged in sequence along one direction. For example, the installation areas 101 may be arranged in an array. For example, six installation areas 101 arranged in an array in a first direction x and a second direction y may be arranged inside the base 10, and the position and function of the installation area 101 may be adjusted based on actual working conditions, and the effects of the present embodiment can be achieved.

[0038] Based on the above-mentioned structure of the base 10, correspondingly, in this embodiment, the shielding plate 20 includes three shielding segments 201 corresponding to the three installation areas 101 and two connecting segments 203 located between adjacent shielding segments 201. The shielding segment 201 located in the middle can be arranged with an avoidance hole 202 for the detection head of the sensor to extend out.

[0039] In order to ensure the shielding effect, ensure that the base 10 and the shielding plate 20 are tightly matched. Figure 2 and Figure 3 , Figure 3 It is a schematic cross-sectional structural diagram of an application scenario of an implementation method of the integrated shielding structure of the present application.

[0040] like Figure 2 and Figure 3 As shown, in this embodiment, a flange 204 is arranged at the outer edge of the shielding plate 20 facing the base 10 . When the shielding plate 20 covers the opening 104 of the base 10 , the outer surface of part of the flange 204 is arranged in contact with the inner wall of the base 10 .

[0041] In addition, a surrounding plate 103 is arranged outside the installation area 101 on one side of the shielding plate 20 . When the shielding plate 20 covers the opening 104 of the base 10 , the inner surface of part of the flange 204 is also arranged to fit the outer surface of the surrounding plate 103 .

[0042] Based on the above structural arrangement, the close fit between the shielding plate 20 and the base 10 is ensured, thereby helping to improve the shielding effect.

[0043] It should be noted that, in the present embodiment, a circle of flange 204 is arranged on the shielding plate 20, and a surrounding plate 103 is arranged on the periphery of only one side of the installation area 101, part of the flange 204 is in contact with the inner wall of the base 10, and part of the flange 204 is in contact with the surrounding plate 103; in other embodiments, the shielding plate 20 may not be arranged with a full circle of flange 204, for example, the flange 204 may be arranged only on part of the outer edge of the shielding plate 20, and the periphery of the installation area 101 located at the edge of the base 10 may also be arranged with a surrounding plate 103 matching the flange 204, which can also achieve the effect of the present embodiment.

[0044] In order to facilitate the assembly of the instrument, the shielding plate 20 can also play a guiding role. Figure 2 and Figure 3 As shown, a connecting segment 203 of the shielding plate 20 is a positioning ridge structure 205 that is protruded relative to the adjacent shielding segment 201 along a third direction z, wherein the third direction z is a direction away from the base 10 .

[0045] The positioning ridge structure 205 based on the connecting plate 2052 can provide positioning for other parts on the shielding plate 20, such as the air duct plate, to facilitate the assembly of the equipment.

[0046] Specifically, in this embodiment, the positioning rib structure 205 includes a positioning plate 2051 and connecting plates 2052 located on both sides of the positioning plate 2051 .

[0047] The positioning plate 2051 is located on one side of the adjacent shielding plate 20 in the third direction z, that is, on the side of the adjacent shielding plate 20 away from the base 10. The connecting plates 2052 on both sides respectively connect the positioning plate 2051 and the shielding segment 201 on the corresponding side.

[0048] Of course, in other embodiments, the positioning ridge structure 205 can also be adjusted based on actual working conditions. For example, the positioning plate 2051 can be divided into multiple sections, the positioning plate 2051 can also be directly connected to the shielding section 201 on one side, etc., as long as the corresponding positioning effect can be achieved, the effect of this embodiment can be achieved.

[0049] In addition, in the present embodiment, only one connecting section 203 is a positioning rib structure 205. In other embodiments, multiple connecting sections 203 may be designed as positioning rib structures 205 based on actual working conditions, which can also achieve the effect of the present embodiment.

[0050] Further, such as Figure 3 As shown, in order to facilitate the assembly of the instrument and adjust the size of each installation area 101 based on the actually installed components, in this embodiment, in the first direction x, the relative distance between the three shielding segments 201 and the base 10 gradually increases, that is, the height of the three shielding segments 201 gradually increases along the first direction x, thereby forming a step structure to adapt to the components installed on the shielding plate 20, which helps to improve the assembly accuracy.

[0051] It is understandable that in other embodiments, when other numbers of installation areas 101 are arranged inside the base 10, and correspondingly, the shielding plate 20 includes other numbers of shielding segments 201, the height difference between adjacent shielding segments 201 can be adjusted so that the shielding plate 20 has a step structure suitable for other components, thereby improving the assembly accuracy.

[0052] In particular, in this embodiment, the shielding segment 201 located in the middle also cooperates with the adjacent connecting segments 203 on both sides to form a concave structure 206 protruding in the direction opposite to the third direction z, that is, the shielding segment 201 located in the middle also cooperates with the adjacent connecting segments 203 on both sides to form a concave structure 206 protruding toward the direction of the base 10, thereby further facilitating the installation of other components.

[0053] It can be understood that in other embodiments, when other numbers of installation areas 101 are arranged inside the base 10, and correspondingly, the shielding plate 20 includes other numbers of shielding segments 201, one or more shielding segments 201 located in the middle and their adjacent connecting segments 203 can also form a concave structure 206 to adapt to other components.

[0054] Based on the integrated shielding structure of the above-mentioned embodiments, integrated electromagnetic shielding and thermal insulation shielding of multiple installation areas 101 can be achieved through the integral shielding plate 20. It is easy to assemble and can provide positioning and guidance for other components installed on the shielding plate 20, thereby facilitating the improvement of the assembly accuracy of the equipment, facilitating production installation and technical service maintenance, and reducing labor costs.

[0055] The present application also provides an electronic scale adopting the integrated shielding structure of the above-mentioned embodiments. Based on the above-mentioned integrated shielding structure, the electronic scale can effectively simplify the number of components, save manufacturing costs, ensure the shielding effect of each area, and ensure the working stability of the sensor.

[0056] For those skilled in the art, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0057] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustration and illustration. These descriptions are not intended to limit the present application to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present application and its practical application, so that those skilled in the art can realize and utilize the various exemplary embodiments of the present application and various selections and changes. The scope of the present application is intended to be limited by the claims and their equivalents.

Claims

1. An integrated shielding structure, characterized in that: include: A base is provided with an opening on one side, and a plurality of mutually independent installation areas are formed inside the base; A shielding plate, which is covered at the opening of the base, and includes a plurality of shielding segments corresponding to the plurality of installation areas one by one and a connecting segment arranged between adjacent shielding segments, and each shielding segment is arranged to cover the corresponding installation area; Wherein, the plurality of shielding segments and the connecting segment are integrally formed.

2. The integrated shielding structure according to claim 1, characterized in that: Among the plurality of connecting segments, at least one connecting segment is a positioning convex ridge structure protruding from the adjacent shielding segment in a direction away from the base.

3. The integrated shielding structure according to claim 2, characterized in that: The positioning ridge structure includes a positioning plate and a connecting plate arranged on one side or both sides of the positioning plate. The positioning plate is arranged on the side of the adjacent shielding segment away from the base. Both sides of the positioning ridge structure are respectively connected to the shielding segments on the corresponding sides.

4. The integrated shielding structure according to claim 1, characterized in that: A flange is arranged at least partially on the outer edge of one side of the shielding plate facing the base, and at least partially the outer surface of the flange is arranged in contact with the inner wall of the base.

5. The integrated shielding structure according to claim 4, characterized in that: A panel is arranged around one or more of the plurality of installation areas, and at least a portion of the inner surface of the flange is fitted with the outer surface of the panel.

6. The integrated shielding structure according to claim 1, characterized in that: The base includes a plurality of installation areas sequentially arranged along a first direction, and in the first direction, a relative distance between the plurality of shielding segments and the base gradually increases.

7. The integrated shielding structure according to claim 1, characterized in that: The base includes a plurality of installation areas sequentially arranged along a first direction, and at least one shielding segment located in the middle cooperates with the connecting segments adjacent to both sides to form an inner concave structure protruding toward the base.

8. An electronic weighing instrument, characterized in that: It comprises the integrated shielding structure as described in any one of claims 1 to 7.

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