Sensor component, weighing sensor assembly and electronic scale

Abstract

A sensor component, comprising: a sensor body (1) having a bearing rod (11); and a first connector (2), which has one end connected to the bearing rod (11), the other end defined as an abutting portion (23) and the middle defined as an extension portion (22). A weighing sensor assembly comprising the sensor component. The weighing sensor assembly comprises a scale foot body (7). The abutting portion (23) of the sensor component abuts against the scale foot body (7); by means of changing the length of the extension portion (22) of the first connector (2), the position of the abutting portion (23) can be adjusted at a low cost, and a relatively sufficient space is provided around the periphery of the abutting portion (23); and by means of the specific contact manner between the abutting portion (23) and the scale foot body (7), the weighing accuracy of the weighing sensor assembly on uneven ground can be improved. Further provided is an electronic scale.

Description

Sensor components, weighing sensor assemblies, and electronic scales

[0001] This application claims priority and benefit from the following three Chinese patent applications, the entire contents of which are incorporated herein by reference: 1. Chinese patent application No. 2024109071256, filed on July 8, 2024, entitled "Sensor Component, Weighing Sensor Assembly, and Electronic Scale"; 2. Chinese patent application No. 202421610827X, filed on July 8, 2024, entitled "Weighing Sensor Assembly and Electronic Scale"; 3. Chinese patent application No. 2024229083336, filed on November 27, 2024, entitled "Weighing Sensor Assembly and Electronic Scale". Technical Field

[0002] This invention relates to the field of weighing equipment technology, specifically to a sensor component, a weighing sensor assembly, and an electronic scale. Background Technology

[0003] In existing technologies, a protruding contact point is typically provided on the support rod of the load cell body. This contact point serves as the component that contacts the scale foot pads, transmitting pressure to the support rod. The deformation of the support rod then outputs a changing electrical signal to achieve weighing. However, in this structural form, the contact point is usually an integral part of the support rod, or welded to it. The lower end of the contact point is relatively close to the support rod, resulting in limited space around the contact point when designing the electronic scale structure, making it difficult to incorporate other structural elements.

[0004] In addition, the main factors affecting the accuracy of electronic scales are the pairing and combination of the scale feet and sensors. In existing technologies, the scale feet and sensors are often joined together through rigid contact methods such as thermoforming or screwing. In actual use, if the ground is not level, the force on the scale feet will not be vertical, and consequently, the load-bearing rod on the sensor will not be vertically stressed, thus affecting the overall accuracy. Some electronic scales also have scale feet elastically connected to the main casing, with the sensor resting against the scale feet. If the ground is not level, the scale feet will no longer bear the force completely vertically, and the main casing will bear some of the pressure, leading to a decrease in measurement accuracy.

[0005] In addition, some electronic scales increase the thickness of their feet to prevent deformation during use and thus improve measurement accuracy, resulting in a thicker overall scale that affects its appearance and portability. Summary of the Invention

[0006] The present invention was made to solve the above-mentioned technical problems. One of its objectives is to provide a sensor component that can increase the space around the contact points on the sensor, making it easier to set other structures.

[0007] Another objective of this invention is to provide a weighing sensor assembly that can improve weighing accuracy in environments where the ground is not level.

[0008] According to one embodiment of the present invention, a sensor component is provided, comprising: a sensor body having a support rod; a first connector having one end connected to the support rod, the other end being an abutment portion, and the middle portion being an extension portion.

[0009] In one embodiment, the lower end of the abutment portion is an arc surface.

[0010] In one embodiment, the support rod has a mounting hole, and one end of the first connector is a connecting portion disposed in the mounting hole.

[0011] According to one embodiment of the present invention, a weighing sensor assembly is provided, comprising: a scale body; and a sensor component as described above, wherein the abutting portion abuts against the scale body.

[0012] As one implementation, it also includes: a scale foot connecting assembly, which is fitted onto the first connector, with one end connected to the bearing rod and the other end connected to the scale foot body.

[0013] In one embodiment, the scale foot connecting assembly further includes: a second connector, the upper end of which is connected to the bearing rod, and a first through hole for accommodating the extension is formed in the middle; a support base, which is disposed on the outer periphery of the second connector and connected to the scale foot body; and an elastic member, one end of which is connected to the outer periphery of the second connector and the other end of which is connected to the support base.

[0014] In one embodiment, a second through hole is formed in the middle of the support base to accommodate the elastic member and the second connecting member, and the outer end of the elastic member is fixedly connected to the inner wall of the second through hole.

[0015] In one embodiment, a plurality of elastic elements are uniformly arranged between the second connector and the support base.

[0016] In one embodiment, the scale body is embedded or adhered to the lower end of the support base.

[0017] As one embodiment, the lower end of the support base is provided with a sealing plate located on the underside of the scale body.

[0018] In one embodiment, the second connector, support base, and elastic element are an integral structure.

[0019] In one embodiment, a plurality of elastic elements are evenly distributed on the outer periphery of the second connector, and an annular connecting ring is provided on the outer periphery of the elastic element. The outer end of the elastic element is fixedly connected to the inner wall of the connecting ring. A plurality of outwardly extending first snap-fit ​​portions are formed on the outer periphery of the connecting ring, and a first limiting portion is provided on the support base opposite to the first snap-fit ​​portion. The first snap-fit ​​portion and the first limiting portion snap together.

[0020] In one embodiment, a plurality of elastic elements are uniformly provided between the second connector and the support base, and a plurality of second limiting portions in the shape of strip holes are formed on the support base in the circumferential direction. The scale body is provided with a second snap-fit ​​portion opposite to the second limiting portion; the second snap-fit ​​portion engages with the second limiting portion.

[0021] In one embodiment, the upper end face of the extension abuts against the support rod.

[0022] In one embodiment, the upper end of the second connector is formed with a locking arm that engages with the bearing rod.

[0023] In one embodiment, the upper end of the second connector is formed with a connecting arm having a receiving cavity, the side of which is an open shape for inserting the bearing rod; one end of the bearing rod is disposed in the receiving cavity.

[0024] As one embodiment, the contact area between the abutting part and the scale body does not exceed 15mm. 2 .

[0025] In one embodiment, at least one of the two contact surfaces between the abutting portion and the scale body is an arc surface.

[0026] In one embodiment, the scale foot body is fitted onto the abutment portion, and the lower end surface of the scale foot body is an arc surface.

[0027] In one embodiment, the upper end of the scale body is formed with a brim extending outward.

[0028] According to one embodiment of the present invention, an electronic scale is provided, comprising: a weighing plate, the lower end of which is provided with a weighing sensor assembly as described above.

[0029] Based on the above description and practice, it can be seen that the present invention has the following advantages compared with the prior art:

[0030] 1. The sensor component of this invention has a first connector on the support rod. The lower end of the first connector abuts against other structures, such as directly against the scale foot, to transmit pressure. Because the first connector has a simple structure and small size, its manufacturing cost is low. Therefore, when designing an electronic scale, the length of the extension in the first connector can be changed according to actual needs to adjust the vertical position of the abutment, providing ample space around the abutment. Furthermore, this process does not require changes to the structure of the sensor body, exhibiting good versatility.

[0031] 2. The weighing sensor assembly of this invention combines the aforementioned sensor component with the scale body, achieving weighing while also possessing the advantages of the aforementioned sensor component. By designing at least one of the two contact surfaces between the abutment portion and the scale body as an arc surface, weighing accuracy can be improved in environments where the ground is not level.

[0032] 3. In the weighing sensor assembly of this invention, after the scale foot connecting assembly is installed, the second connecting member is connected to the scale foot body through an elastic element. The lower end of the first connecting member passes through the second connecting member and rests against the scale foot body, being constrained by the second connecting member in the horizontal direction and by the scale foot body in the vertical direction. During use, when the ground is uneven, even if the scale foot body is tilted, the elastic element can keep the first connecting member in a vertical or nearly vertical state, ultimately making the force on the bearing rod closer to the vertical direction, thus improving measurement accuracy. Attached Figure Description

[0033] Figure 1 is an exploded structural diagram of the sensor component according to Embodiment 1 of the present invention.

[0034] Figure 2 is a schematic diagram of the structure of the sensor body in the sensor component according to Embodiment 1 of the present invention.

[0035] Figure 3 is a schematic diagram of the structure of the first connector in the sensor component according to Embodiment 1 of the present invention.

[0036] Figure 4 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 2 of the present invention.

[0037] Figures 5a and 5b are three-dimensional structural schematic diagrams of the weighing sensor assembly according to Embodiment 2 of the present invention from two different perspectives.

[0038] Figure 6 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 3 of the present invention.

[0039] Figure 7 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 4 of the present invention.

[0040] Figure 8 is a schematic diagram of the structure of the second connector, elastic element and connecting ring in the weighing sensor assembly according to Embodiment 4 of the present invention.

[0041] Figure 9 is a schematic diagram of the structure of the weighing sensor assembly in Embodiment 4 of the present invention.

[0042] Figure 10 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 5 of the present invention.

[0043] Figure 11 is a schematic diagram of the structure of the second connector, elastic member and connecting ring in the weighing sensor assembly according to Embodiment 5 of the present invention.

[0044] Figure 12 is a schematic diagram of the structure of the weighing sensor assembly according to Embodiment 5 of the present invention.

[0045] Figure 13 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 6 of the present invention.

[0046] Figure 14 is a cross-sectional structural diagram of the weighing sensor assembly according to Embodiment 6 of the present invention.

[0047] Figure 15 is an exploded structural diagram of the weighing sensor assembly according to Embodiment 7 of the present invention.

[0048] Figure 16 is a schematic diagram of the structure of the weighing sensor assembly according to Embodiment 7 of the present invention.

[0049] The reference numerals in the figure are as follows: 1. Sensor body; 11. Support rod; 12. Fixing structure; 13. Mounting hole; 2. First connector; 21. Connecting part; 22. Extension part; 23. Abutting part; 24. Groove; 3. Scale foot connecting assembly; 31. Support base; 32. Second connector; 33. Elastic element; 34. Connecting arm; 35. Locking arm; 36. Protrusion; 37. Sealing plate; 38. Connecting ring; 39. Receiving cavity; 41. First through hole; 42. Second through hole; 51. First locking part; 52. Second locking part; 61. First limiting part; 62. Second limiting part; 7. Scale foot body; 71. Cap brim. Detailed Implementation

[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0051] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0052] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Example 1

[0054] This embodiment discloses a sensor component, as shown in Figures 1 to 3. The sensor component includes a sensor body 1 and a first connector 2. The sensor body 1 has a support rod 11 in the middle and a fully enclosed fixing structure 12 around its periphery. In use, the sensing circuit is located on the support rod 11 and can sense changes in electrical signals caused by deformation of the support rod 11. The fully enclosed fixing structure 12 surrounds the outer periphery of the support rod 11, which can make the support rod 11 more evenly stressed when installed on other structures.

[0055] A mounting hole 13 is formed on the support rod 11. One end of the first connector 2 is a connecting portion 21 located in the mounting hole 13, the other end is an abutment portion 23, and the middle part is an extension portion 22. As shown in Figure 3, the upper part of the first connector 2 is the connecting portion 21, which has an external thread that matches the internal thread in the mounting hole 13, allowing the first connector 2 to be fixedly mounted on the support rod 11. The lower end of the first connector 2 is the abutment portion 23, which abuts against other structures during use, such as directly against the scale foot or the ground. Pressure can be transmitted to the support rod 11 through the first connector 2 to achieve the weighing function. In other embodiments, the first connector 2 and the mounting hole 13 can also be connected by snap-fitting, riveting, welding, or bonding, which can also achieve the connection between the first connector 2 and the sensor body 1. Alternatively, the first connector 2 can be directly welded or snap-fitted onto the support rod 11, in which case it is not necessary to provide the aforementioned mounting hole 13 on the support rod 11, and the above function can still be achieved.

[0056] Because the first connector 2 has a simple structure and small size, its manufacturing cost is low. Therefore, when designing an electronic scale, the length of the extension 22 in the middle of the first connector 2 can be changed according to actual needs to adjust the vertical position of the abutment 23, which facilitates the installation of other structural components on the outer periphery of the first connector 2. Furthermore, in this process, there is no need to significantly change the structure of the sensor body 1, which has good versatility.

[0057] As one embodiment, in this embodiment, the abutment portion 23 is also provided with a recessed groove 24, which makes it easy for the user to screw the first connector 2 into the mounting hole 13 with a screwdriver, so as to achieve a stable connection between the first connector 2 and the bearing rod 11.

[0058] In one implementation, the lower end of the abutment portion 23 is curved, allowing it to be directly placed on the ground as a weighing foot. In this case, if the ground is uneven, compared to a flat lower end for the abutment portion 23, the first connector 2 will not experience a large bending moment, reducing the deformation of the bearing rod 11 along non-vertical directions and improving weighing accuracy to some extent.

[0059] Example 2

[0060] This embodiment discloses a weighing sensor assembly. Referring to Figures 4, 5a, and 5b, the weighing sensor assembly includes the sensor component from Embodiment 1 and a weighing foot body 7. The abutment portion 23 of the first connecting member 2 abuts against the weighing foot body 7. Compared to the sensor component in Embodiment 1, after setting the weighing foot body 7, during use, the abutment portion 23 of the first connecting member 2 no longer directly contacts the ground, but rather contacts the ground through the weighing foot body 7, increasing the contact area and improving the stability of the weighing sensor assembly, while also retaining the advantages of the aforementioned sensor component.

[0061] As one implementation, the contact area between the abutment portion 23 and the scale body 7 does not exceed 15mm. 2 In this structural configuration, the contact portion 23 and the base body 7 are in point contact or approximately in point contact.

[0062] When the weighing foot body 7 is placed on an uneven surface and subjected to non-vertical forces, if the weighing foot body 7 does not tilt, the first connecting piece 2 and the bearing rod 11 still bear vertical pressure and will not affect the weighing accuracy. If the weighing foot body 7 tilts to a certain extent, compared with the weighing sensor assembly structure in which the weighing feet and sensors are combined by hard contact methods such as heat fusion or screws, the first connecting piece 2 in this invention will not generate a significant bending moment, nor will it tilt to the same degree as the weighing foot body 7. This can reduce the deformation of the bearing rod 11 along the non-vertical direction and improve the weighing accuracy to a certain extent.

[0063] As one implementation, at least one of the two contact surfaces of the abutment portion 23 and the weighing foot body 7 is an arc surface. With this structure, they form a point contact, achieving the aforementioned effect of improving weighing accuracy during actual weighing. As shown in Figure 4, in this embodiment, the lower end of the abutment portion 23 is arc-shaped and abuts against the upper plane of the weighing foot body 7. In other embodiments, an arc surface opposite to the abutment portion 23 can also be provided on the weighing foot body 7, with the lower end of the abutment portion 23 being a plane, similarly achieving the aforementioned point contact effect.

[0064] As one implementation, the contact portion 23 and the base plate body 7 can also form a small surface contact, for example, the area of ​​the contact surface does not exceed 15 mm. 2 Even when the ground is uneven, it will not cause significant non-vertical deformation to the load-bearing rod 11, ensuring that the weighing sensor assembly has good weighing accuracy.

[0065] In one embodiment, the weighing sensor assembly further includes a weighing foot connecting assembly 3. The weighing foot connecting assembly 3 is fitted onto the first connecting member 2, with one end connected to the support rod 11 and the other end connected to the weighing foot body 7. By providing this weighing foot connecting assembly 3, the stability of the weighing foot body 7 and the first connecting member 2 can be further improved, indirectly increasing the weighing accuracy.

[0066] In one embodiment, the scale foot connection assembly 3 includes a support base 31, a second connector 32, and an elastic member 33. As shown in FIG4, the upper end of the second connector 32 is connected to the bearing rod 11, and a first through hole 41 for accommodating the extension 22 is formed in the middle. One end of the elastic member 33 is connected to the outer periphery of the second connector 32, and the other end of the elastic member 33 is connected to the support base 31. The lower end of the first connector 2 passes through the second connector 32 and rests against the scale foot body 7. It is constrained by the second connector 32 in the horizontal direction and by the scale foot body 7 in the vertical direction. In use, when the ground is uneven, even if the scale foot body 7 is tilted, the elastic member 33 can keep the first connector 2 in a vertical or nearly vertical state, ultimately making the force on the bearing rod 11 closer to the vertical direction, which can further improve the measurement accuracy.

[0067] Referring to Figures 5a and 5b, the second connecting member 32 is a cylindrical structure fitted around the outer periphery of the extension 22. Several curved elastic elements 33 are evenly distributed around its outer periphery. A second through hole 42 is formed in the middle of the support base 31 to accommodate the elastic elements 33 and the second connecting member 32. The outer end of the elastic element 33 is fixedly connected to the inner wall of the second through hole 42. This structural form allows most of the structure of the first connecting member 2, the second connecting member 32, and the elastic elements 33 to be located in the middle of the support base 31. For the entire weighing sensor assembly, while achieving the aforementioned function of improving weighing accuracy, it does not significantly increase the vertical dimension. The curved elastic element 33 can obtain greater elasticity in a smaller space, preventing the support base 31 from requiring a larger radial dimension.

[0068] As one implementation, the support base 31, the second connector 32, and the elastic member 33 are an integral structure, for example, using an integral molding process, which facilitates the large-scale processing and manufacturing of the scale foot connecting assembly 3 at a lower cost.

[0069] In one implementation, the weighing foot body 7 is a load-bearing plate with a relatively thin thickness. The weighing foot body 7 is embedded in the lower end of the support base 31, for example, embedded in the second through hole 42, or glued to the second through hole 42. Since the weighing foot body 7 is located inside the support base 31, it does not additionally increase the thickness of the entire weighing sensor assembly. Furthermore, making the weighing foot body a non-deformable metal or plastic part can also reduce the thickness of the entire assembly to some extent.

[0070] In one embodiment, the upper end of the second connecting member 32 has a locking arm 35. After aligning with the lower end of the support rod 11, moving the second connecting member 32 upwards can lock the locking arm 35 onto the support rod 11, indirectly preventing the support base 31 from rotating excessively and providing a certain limiting effect on the support base 31. Compared to the support base 31 being fixedly installed on the outer shell or other structure of the electronic scale, in this invention, the support base 31 is indirectly connected to the support rod 11, and the elastic element 33 between them provides a degree of freedom of movement. This allows for a certain limiting effect on the support base 31 without affecting the weighing accuracy.

[0071] In one embodiment, the diameter of the extension 22 on the first connector 2 is larger than the inner diameter of the mounting hole 13, and the upper end face of the extension 22 abuts against the lower end face of the support rod 11. During weighing measurement, after the first connector 2 is compressed, the upper end of the extension 22 presses tightly against the support rod 11, which can improve the connection stability between the first connector 2 and the support rod 11, prevent them from loosening, and keep the weighing sensor assembly at a high weighing accuracy.

[0072] Example 3

[0073] This embodiment discloses another weighing sensor assembly. Please refer to Figure 6. This weighing sensor assembly also includes the sensor component, weighing foot body 7, and weighing foot connecting assembly 3 as in Embodiment 1. The main difference from the weighing sensor assembly in Embodiment 2 is that, in this embodiment, the lower end face of the first connecting member 2 is flat, and an arc-shaped protrusion 36 is provided on the upper end of the weighing foot body 7 opposite to the first connecting member 2. When the various structures are assembled together, the protrusion 36 abuts against the lower end face of the first connecting member 2, which can form a point contact between the first connecting member 2 and the weighing foot body 7 in the vertical direction, ensuring that the weighing sensor assembly has high weighing accuracy.

[0074] As one implementation, the cross-section of the abutment portion 23 is polygonal, which makes it easier for the user to screw the first connector 2 into the mounting hole 13, thus improving the ease of assembly.

[0075] As one implementation, a sealing plate 37 is also provided at the lower end of the support base 31, located on the lower side of the weighing foot body 7. For example, the sealing plate 37 is placed in the second through hole 42. After the weighing foot body 7 is fixed in the second through hole 42, the sealing plate 37 is snapped or glued in the second through hole 42, which can make the lower end of the weighing foot body 7 form a flat end face, which can also improve the weighing accuracy to a certain extent.

[0076] Other components such as the support base 31, sensor components, and elastic element 33 are the same as in Embodiment 2, and their specific structures will not be described in detail here.

[0077] Example 4

[0078] This embodiment discloses another weighing sensor assembly. Please refer to Figures 7, 8, and 9. This weighing sensor assembly also includes the sensor component, scale body 7, and scale foot connection assembly 3 as in Embodiment 1. The main difference between this and the weighing sensor assembly in Embodiment 2 lies in the specific structural form of the scale foot connection assembly 3.

[0079] Specifically, in this embodiment, the scale foot connecting assembly 3 includes a support base 31, a second connecting member 32, and an elastic member 33. A first engaging portion 51 is provided on the outer periphery of the elastic member 33, and a first limiting portion 61 is provided on the support base 31 opposite to the first engaging portion 51, wherein the first engaging portion 51 and the first limiting portion 61 engage together. In this scale foot connecting assembly 3, the support base 31 is a separate structure from the other components. When designing the entire electronic scale, the user can design a support base 31 of a corresponding shape according to actual appearance requirements, without needing to consider the impact on other structures in the scale foot connecting assembly 3.

[0080] In one embodiment, the second connecting member 32 is a cylindrical structure fitted around the outer periphery of the extension 22. A plurality of bent elastic members 33 are evenly distributed around its outer periphery. The outer periphery of each elastic member 33 is an annular connecting ring 38, and the outer ends of the elastic members 33 are fixedly connected to the inner wall of the connecting ring 38. A plurality of outwardly extending first engaging portions 51 are formed around the outer periphery of the connecting ring 38. The support base 31 is provided with a first limiting portion 61 opposite to the first engaging portions 51. As shown in Figures 8 and 9, the first engaging portion 51 is a plate-like structure extending radially outward, and the first limiting portion 61 is a bent structure extending radially inward at one end, with an inverted L-shaped cross-section. When the connecting ring 38 and the support base 31 are aligned, rotating the connecting ring 38 or the support base 31 engages the first engaging portion 51 in the first limiting portion 61, thus connecting the support base 31 with the connecting ring 38, the elastic members 33, and the second connecting member 32.

[0081] The components in this type of scale foot connecting assembly 3 are relatively thin, making them easier to manufacture. For example, the overall thickness of the connecting ring 38, elastic element 33, and second connecting element 32 is reduced compared to that in Embodiment 2, which is more conducive to one-piece molding. Furthermore, the scale foot connecting assembly 3 adopts a snap-fit ​​split structure, which further facilitates the assembly of the first connecting element 2 and the scale foot body 7. When assembling the entire weighing sensor assembly, simply snap the second connecting element 32 onto the support rod 11, then pass the upper end of the first connecting element 2 through the first through hole 41 and install it in the mounting hole 13. Afterward, install the scale foot body 7 onto the support base 31 and snap it onto the connecting ring 38 to complete the assembly.

[0082] Other components, such as sensor parts and first connector 2, are the same as in Embodiment 2, and their specific structures will not be described in detail here.

[0083] Example 5

[0084] This embodiment discloses another weighing sensor assembly. Please refer to Figures 10 to 12. This weighing sensor assembly also includes the sensor component, scale body 7, and scale foot connection assembly 3 as in Embodiment 1. The main difference between this and the weighing sensor assembly in Embodiment 4 lies in the specific structural form of the scale foot connection assembly 3.

[0085] Specifically, in this embodiment, the scale foot connecting assembly 3 includes a support base 31, a second connector 32, and an elastic member 33. A second limiting portion 62 is provided on the outer periphery of the support base 31, and a second engaging portion 52 is provided on the scale foot body 7 opposite to the second limiting portion 62, wherein the second engaging portion 52 engages with the second limiting portion 62. In this scale foot connecting assembly 3, the scale foot body 7 is independent of other structures. When designing the entire electronic scale, the user can design the scale foot body 7 of a corresponding shape according to actual appearance requirements, without needing to consider the impact on other structures in the scale foot connecting assembly 3.

[0086] In one embodiment, the second connector 32 is a cylindrical structure fitted around the outer periphery of the extension 22. A plurality of bent elastic members 33 are evenly distributed around its outer periphery. The outer periphery of each elastic member 33 is an annular support base 31, and the outer ends of the elastic members 33 are fixedly connected to the inner wall of the support base 31. A plurality of second limiting portions 62 are formed on the support base 31, and the weighing foot body 7 is provided with second engaging portions 52 opposite to the second limiting portions 62.

[0087] As shown in Figures 11 and 12, the second limiting part 62 is a strip hole arranged in a ring shape, with one end wider than the other. The second engaging part 52 is a bent structure extending radially outward at one end, with an inverted L-shaped cross-section. During assembly, the second engaging part 52 is inserted into the wider end of the second limiting part 62, and then the support base 31 or the weighing foot body 7 is rotated to engage the second engaging part 52 in the second limiting part 62, thereby connecting the weighing foot body 7 with the connecting ring 38, the elastic element 33, and the second connecting element 32.

[0088] The components in this type of scale foot connecting assembly 3 are relatively thin, making them easier to manufacture. For example, the overall thickness of the support base 31, elastic element 33, and second connecting element 32 is reduced compared to that in Embodiment 2, which is more conducive to one-piece molding. Furthermore, the scale foot connecting assembly 3 and the scale foot body 7 adopt a snap-fit ​​split structure, which also facilitates the assembly of the first connecting element 2. When assembling the entire weighing sensor assembly, simply snap the second connecting element 32 onto the support rod 11, then pass the upper end of the first connecting element 2 through the first through hole 41 and install it in the mounting hole 13. Finally, snap the scale foot body 7 onto the support base 31 to complete the assembly.

[0089] As one implementation method, in this embodiment, the scale body 7 is made of a material with high rigidity, such as metal or plastic, which is not easily deformed during use.

[0090] Other components, such as sensor parts and the first connector 2, are the same as in Embodiment 4, and their specific structures will not be described in detail here.

[0091] Example 6

[0092] This embodiment discloses another weighing sensor assembly, which includes the sensor component in Embodiment 1 and a weighing body 7, as shown in Figures 13 and 14.

[0093] Compared to the weighing sensor assembly in Embodiment 2, the connection method between the second connector 32 and the support rod 11 changes in this embodiment. As shown in Figure 13, the upper end of the second connector 32 forms a connecting arm 34 with a receiving cavity 39, and the side of the receiving cavity 39 is open for the insertion of the support rod 11; one end of the support rod 11 is located inside the receiving cavity 39. Compared to Embodiment 2, where the second connector 32 is connected to the support rod 11 via a locking arm 35, in this embodiment, after the connecting arm 34 with the receiving cavity 39 is provided at the upper end of the second connector 32, the support rod 11 can be directly inserted into the receiving cavity 39 by insertion. This makes the assembly of the entire weighing foot connecting assembly 3 and the support rod 11 more convenient.

[0094] When assembling the first connector 2, simply pass the first connector 2 through the second connector 32 and connect it to the upper support rod 11. In this embodiment, the accommodating cavity 39 not only accommodates the support rod 11 but also provides a certain supporting force for the support rod 11, indirectly stabilizing the entire scale foot connecting assembly 3.

[0095] Other components such as the support base 31, sensor components, and elastic element 33 are the same as in Embodiment 2, and their specific structures will not be described in detail here.

[0096] Example 7

[0097] This embodiment discloses another weighing sensor assembly. Referring to Figures 15 and 16, this weighing sensor assembly includes the sensor component from Embodiment 1 and a weighing foot body 7. Compared to the weighing sensor assembly in Embodiment 2, the weighing foot body 7 in this embodiment is fitted onto the abutment portion 23 of the first connecting member 2. The lower end of the weighing foot body 7 is curved, and during use, it directly rests against the ground. In this case, if the ground is uneven, compared to resting on a flat surface, a larger bending moment will not be generated on the first connecting member 2, which can reduce the deformation of the bearing rod 11 along non-vertical directions and improve weighing accuracy to a certain extent. The weighing foot body 7 is an exposed part of the electronic scale. This split structure allows users to easily change the color, surface texture, and other appearance of the weighing foot body 7 according to actual needs to adapt to the overall appearance of the scale.

[0098] Furthermore, as an embodiment, a brim 71 extending outward is formed at the upper end of the weighing foot body 7. After the weighing sensor assembly is installed on the electronic scale, for example, with the main body of the weighing foot body 7 located in a mounting hole on the outer casing of the scale, the brim 71 abuts against the outer periphery inside the mounting hole, which can both cover the internal structure of the scale and prevent the weighing foot body 7 from falling outward.

[0099] Example 8

[0100] In this embodiment, an electronic scale is disclosed, which includes a weighing platform for a user to place an item to be weighed. A weighing sensor assembly, as described in any of embodiments two to five above, is provided at the lower end of the weighing platform.

[0101] Specifically, the number of load cells on the scale can be adjusted according to actual needs. For example, when the scale is small, only one load cell can be placed in the center. As the scale becomes larger, two or more load cells can be used. Furthermore, evenly distributing four load cells on a scale for measuring weight allows for more accurate weight measurement.

[0102] Furthermore, a through hole is provided at the lower end of the weighing plate to expose the support base 31 or the weighing plate body 7, and the fixing structure 12 in the sensor component is fixedly installed on the weighing plate. During use, even if the weighing plate or the outer casing of the electronic scale deforms, generating a non-vertical force on part of the support base 31 or the weighing plate body 7, the special structure of the aforementioned weighing sensor assembly, especially the setting of the elastic element 33 and the contact connection method between the first connecting member 2 and the weighing plate body 7, can reduce the impact on the first connecting member 2 and the bearing rod 11, ensuring that the electronic scale has better weighing accuracy.

[0103] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sensor component, characterized in that, include: The sensor body has a support rod; The first connector has one end connected to the support rod, the other end being an abutment portion, and the middle part being an extension portion.

2. The sensor component as described in claim 1, characterized in that, The lower end of the abutment part is an arc surface.

3. The sensor component as described in claim 1, characterized in that, The support rod has a mounting hole, and one end of the first connector is a connecting part located in the mounting hole.

4. A weighing sensor assembly, characterized in that, include: scale body; The sensor component as described in any one of claims 1 to 3, wherein the abutting portion abuts against the scale body.

5. The weighing sensor assembly as described in claim 4, characterized in that, Also includes: The scale foot connecting assembly is fitted onto the first connecting piece, with one end connected to the bearing rod and the other end connected to the scale foot body.

6. The weighing sensor assembly as described in claim 5, characterized in that, The scale foot connection assembly also includes: The second connector has an upper end connected to the bearing rod and a first through hole formed in the middle to accommodate the extension. A support base is located on the outer periphery of the second connector and is connected to the main body of the scale. The elastic element has one end connected to the outer periphery of the second connector and the other end connected to the support base.

7. The weighing sensor assembly as described in claim 6, characterized in that, The support base has a second through hole in the middle to accommodate the elastic member and the second connecting member, and the outer end of the elastic member is fixedly connected to the inner wall of the second through hole.

8. The weighing sensor assembly as described in claim 6, characterized in that, A plurality of elastic elements are evenly arranged between the second connector and the support base.

9. The weighing sensor assembly as described in claim 6, characterized in that, The scale body is embedded or adhered to the lower end of the support base.

10. The weighing sensor assembly as claimed in claim 9, characterized in that, The lower end of the support base is provided with a sealing plate located on the underside of the scale body.

11. The weighing sensor assembly as claimed in claim 6, characterized in that, The second connector, support base, and elastic element are an integral structure.

12. The weighing sensor assembly as claimed in claim 6, characterized in that, The second connector has a plurality of elastic elements evenly distributed on its outer periphery. Each elastic element has an annular connecting ring on its outer periphery. The outer end of each elastic element is fixedly connected to the inner wall of the connecting ring. The outer periphery of the connecting ring has a plurality of outwardly extending first snap-fit ​​portions. The support base has a first limiting portion opposite to the first snap-fit ​​portion. The first snap-fit ​​portion engages with the first limiting portion.

13. The weighing sensor assembly as claimed in claim 6, characterized in that, A plurality of elastic elements are evenly provided between the second connector and the support base. A plurality of second limiting portions in the shape of strip holes are formed on the support base in the circumferential direction. A second snap-fit ​​portion is provided on the scale body opposite to the second limiting portion. The second snap-fit ​​portion and the second limiting portion snap together.

14. The weighing sensor assembly as described in any one of claims 4 to 13, characterized in that, The upper end face of the extension abuts against the support rod.

15. The weighing sensor assembly as described in any one of claims 6 to 13, characterized in that, The upper end of the second connector has a locking arm that engages with the bearing rod.

16. The weighing sensor assembly as claimed in any one of claims 6 to 13, characterized in that, The upper end of the second connector is formed with a connecting arm having a receiving cavity, the side of which is an open shape for inserting the bearing rod; one end of the bearing rod is located inside the receiving cavity.

17. The weighing sensor assembly as described in any one of claims 4 to 13, characterized in that, The contact area between the abutting part and the scale body is no more than 15mm. 2 .

18. The weighing sensor assembly as claimed in any one of claims 4 to 13, characterized in that, At least one of the two contact surfaces between the abutting part and the scale body is an arc surface.

19. The weighing sensor assembly as claimed in claim 4, characterized in that, The scale foot body is fitted onto the abutment part, and the lower end surface of the scale foot body is an arc surface.

20. The weighing sensor assembly as claimed in claim 19, characterized in that, The upper end of the scale body has a brim that extends outward.

21. An electronic scale, characterized in that, include: The weighing plate has a weighing sensor assembly at its lower end as described in any one of claims 4 to 20.

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