Waterproof electronic scale and implementation method thereof

Abstract

The invention discloses a waterproof electronic scale and an implementation method thereof.The waterproof electronic scale comprises a scale body and a scale pan arranged at the top of the scale body, a weighing sensor, a watertight bin, a circuit bin and a plurality of sealing rings are arranged in the scale body, and a second water blocking baffle extending upwards is further arranged on the scale body; a first water blocking baffle extending downwards is correspondingly arranged on the scale pan, and the first water blocking baffle and the second water blocking baffle are meshed with each other but not connected with each other. According to the scheme, on the premise that the weighing sensor has the waterproof performance, two waterproof measures are provided, the waterproof problem is solved, and IP66-level waterproof can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic scale waterproofing, and in particular to a waterproof electronic scale and an implementation method thereof. Background Art

[0002] An electronic scale is an electronic device used for weighing and may work in an environment with splashing and corrosive liquids in the medical field.

[0003] The pressure-electrical signal transmission of electronic scales is usually achieved through a dedicated weighing sensor, which consists of an elastic body (main body) and a resistance bridge deformation and resistance change bridge sensor attached to the elastic body. The elastic body itself is not afraid of water and has waterproof properties. The bridge sensor can be sealed with soft glue and also has waterproof properties. Therefore, the weighing sensor itself can easily achieve IP65 waterproof performance.

[0004] Electronic scales generally include two major structures: a scale pan and a scale body. The scale body mainly includes two parts: a weighing sensor and a control drive circuit. In existing patent technical solutions, for example, the patent solution with patent number CN105841789A integrates the weighing sensor and the control drive circuit into a whole, and performs a sealing and waterproofing between the weighing sensor and the scale body; the patent solution with patent number CN110332978A covers the weighing sensor with a waterproof shell for secondary sealing and waterproofing. However, the waterproof structures of the above solutions will share the force on the elastomer of the weighing sensor, resulting in uneven and non-linear force on the elastomer, which in turn reduces the weighing accuracy of the weighing system.

[0005] Therefore, how to achieve IP66 level protection for the entire electronic scale while sharing the force through the asymmetric weight sensor elastomer is still a problem that needs to be solved urgently. Summary of the invention

[0006] Based on the above technical problems, the present invention proposes a waterproof electronic scale and an implementation method thereof. Based on the premise that the weighing sensor itself has IP65 waterproof performance, two waterproof solutions are proposed. The specific technical solutions are as follows.

[0007] In a first aspect, a waterproof electronic scale comprises a scale body and a scale pan arranged on the top of the scale body, wherein a weighing sensor, a watertight compartment, a circuit compartment and a plurality of sealing rings are arranged inside the scale body, and a second water-blocking baffle extending upward is also arranged on the scale body, and a first water-blocking baffle extending downward is correspondingly arranged on the scale pan, and the first water-blocking baffle and the second water-blocking baffle are meshed with each other but not connected.

[0008] Specifically, the second water blocking baffle is also provided with a water guide opening.

[0009] Specifically, a bottom cover of the scale body is arranged at the bottom of the scale body, and sealing grooves are arranged around the bottom cover of the scale body and at positions corresponding to the watertight compartment inside the bottom cover.

[0010] Specifically, the watertight compartment includes an upper connection point of the weighing sensor installation compartment, a lower connection point of the weighing sensor installation compartment and a connection point of the bottom cover of the scale body; a cable waterproof connector is arranged on the watertight compartment.

[0011] Specifically, a waterproof connector is arranged outside the scale body.

[0012] On the other hand, a method for implementing a waterproof electronic scale is provided, for implementing the waterproof electronic scale, comprising: A water-blocking baffle plate that meshes with each other but is not connected is arranged between the scale pan and the scale body, the water-blocking baffle plate 2 extending from the scale body extends upward, and the water-blocking baffle plate 1 extending from the scale pan extends downward; The baffles of the scale pan and the scale body intersect with each other, so that the water cannot directly rush out of the scale pan base. The impact force of the water rebounds in the crossed baffles. As the number of baffles increases, the water splashing toward the internal baffles gradually decreases and loses its impact force; The baffle base of the scale body is high in the middle and low around, and has cross water guide openings to guide water that loses its impact force due to gravity to the outside of the scale body along the baffle base of the scale body.

[0013] Specifically, it also includes: The weighing sensor and other electronic components are placed in the watertight compartment and the circuit compartment respectively, wherein the connection between the weighing sensor and the scale pan is provided with an opening; The weighing sensor is sealed with other parts of the electronic scale using a sealing ring and a corresponding sealing groove.

[0014] Specifically, it also includes: a sealing ring is used to seal the circuit compartment and the outside of the scale body, and an external interface is provided, and the interface uses a waterproof connector.

[0015] Beneficial effects of the invention: The invention proposes a waterproof electronic scale and an implementation method thereof, and proposes two waterproof measures based on the premise that the weighing sensor itself has waterproof performance, thereby solving the waterproof problem and achieving IP66 level waterproofness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall structural diagram of a waterproof electronic scale in an embodiment of the present invention; Figure 2 Schematic diagram of a waterproof electronic scale pan in an embodiment of the present invention; Figure 3 1 is an overall schematic diagram of a waterproof electronic scale body according to an embodiment of the present invention; Figure 4 Schematic diagram of the bottom cover of the waterproof electronic scale body in an embodiment of the present invention; Figure 5 This is a top view of a waterproof electronic scale body in an embodiment of the present invention; Figure 6 Schematic diagram of a watertight compartment of a waterproof electronic scale according to an embodiment of the present invention; Figure 7 is a side view of a waterproof electronic scale in an embodiment of the present invention; Among them, 1-scale pan, 2-scale body, 3-water blocking baffle 1, 4-water blocking baffle 2, 5-water guide opening, 6-sealing ring, 7-bottom cover of scale body, 8-sealing groove, 9-cable waterproof interface, 10-watertight compartment, 11-waterproof connector, 12-circuit compartment. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0018] The present invention proposes a waterproof electronic scale and its implementation method, the structure of which is as follows Figures 1 to 7 As shown, the waterproof electronic scale includes a scale body 2 and a scale pan 1 arranged on the top of the scale body 2, wherein a weighing sensor, a watertight compartment 10, a circuit compartment 12 and a plurality of sealing rings 6 are arranged inside the scale body 2, and an upwardly extending water-blocking baffle plate 2 4 is also arranged on the scale body 2, and a downwardly extending water-blocking baffle plate 1 3 is correspondingly arranged on the scale pan 1, and the water-blocking baffle plate 1 3 and the water-blocking baffle plate 2 4 are meshed with each other but not connected.

[0019] In this embodiment, a water guide opening 5 is further provided on the second water blocking baffle plate 4 .

[0020] In this embodiment, a bottom cover 7 is provided at the bottom of the scale body 2, and sealing grooves 8 are provided around the bottom cover 7 and at positions corresponding to the watertight chamber 10. Figure 4 shown.

[0021] In this embodiment, the watertight compartment 10 includes an upper connection point of the weighing sensor installation compartment, a lower connection point of the weighing sensor installation compartment and a connection point of the bottom cover 7 of the scale body; a cable waterproof connector 9 is provided on the watertight compartment 10.

[0022] In this embodiment, a waterproof connector 11 is disposed outside the scale body 2 .

[0023] The present invention also proposes a method for realizing a waterproof electronic scale, wherein water-blocking baffles that mesh with each other but are not connected are arranged between the scale pan 1 and the scale body 2, the water-blocking baffle 2 4 extending from the scale body 2 extends upward, and the water-blocking baffle 1 3 extending from the scale pan extends downward; the baffles of the scale pan 1 and the scale body 2 intersect with each other, so that water cannot directly rush out of the scale pan base, and the impact force of the water rebounds in the intersecting baffles. As the number of baffles increases, the water splashing toward the internal baffles gradually decreases and loses its impact force; the baffle base of the scale body 2 is high in the middle and low around, and the baffle is provided with cross water guide openings 5, which guide the water that loses its impact force due to gravity to the outside of the scale body along the baffle base of the scale body.

[0024] The weighing sensor and other electronic components are placed in the watertight compartment 10 and the circuit compartment 12 respectively, wherein the connection between the weighing sensor and the scale pan 1 has an opening; the weighing sensor and other parts of the electronic scale are sealed with a sealing ring 6 and a corresponding sealing groove 8. The circuit compartment 12 and the outside of the scale body 2 are sealed with a sealing ring 6, and an external interface is provided, and the interface uses a waterproof connector 11.

[0025] In the technical solution of the present invention, the proposed waterproof electronic scale adopts two waterproof measures to achieve IP66 level waterproof.

[0026] Measure 1: Water-blocking structure of the scale pan and body The scale pan and the weighing sensor are connected at a single point, and the scale body is high in the middle and low around, so water cannot flow in directly. Furthermore, an annular water baffle is added between the scale pan and the scale body to prevent water from intruding.

[0027] In this embodiment, water-blocking baffles that mesh with each other but are not connected are added between the scale pan 1 and the scale body 2. The water-blocking baffle 2 4 extending from the scale body extends upward, and the water-blocking baffle 1 3 extending from the scale pan extends downward. The baffles of the scale body 2 and the scale pan 1 intersect with each other, and the water cannot directly rush out of the scale pan base. The impact force of the water will be rebounded in the intersecting baffles. As the number of baffles increases, the water splashing to the internal baffles gradually decreases and loses its impact force. The baffle base of the scale body is high in the middle and low around. There are cross-water guide openings 5 ​​on the baffle. The water that loses its impact force flows out of the scale body along the baffle base of the scale body under the influence of gravity.

[0028] like Figure 1 , Figure 2 , Figure 3 , provides an implementation case of a single weighing sensor. After actual measurement, without considering the waterproof performance of the weighing sensor itself, this structural part can achieve IP66 level waterproof.

[0029] Measure 2: Sealed cabin structure In order to avoid the situation where measure one cannot completely form a waterproof effect, this solution places the other electronic parts in a separate watertight compartment 10, which is composed of an upper connection point with the weighing sensor installation compartment, a lower connection point with the weighing sensor installation compartment and a lower cover connection point. Each part is watertight using a pressurized sealing rubber ring, and the cables between the weighing sensor and the circuit compartment are watertight using cable waterproof connectors, and the external interfaces of the circuit compartment are all waterproof connectors.

[0030] The present invention places the weighing sensor and other electronic parts in different compartments, wherein the connection between the weighing sensor and the tray has an opening, and there is no sealing connection structure that may affect the measuring accuracy of the weighing sensor, and the water-blocking structure of measure 1 provides water-blocking protection. The weighing sensor and other parts of the electronic scale still use the traditional sealing ring sealing method.

[0031] like Figure 6 As shown, in this solution, the weighing sensor compartment is not a completely watertight compartment, and the compartment allows intrusion not exceeding IP65 level. Therefore, a complete watertight structure needs to be constructed between the weighing sensor compartment and other circuit compartments. The cable waterproof connector 9 used here is watertight, such as Figure 5 shown.

[0032] like Figure 7 , provides an implementation case of the waterproof structure of an electronic scale. The circuit compartment and the outside still use the traditional sealing ring structure. The circuit board needs to have an external interface, which uses a waterproof connector. The system has an IP66 protection level. The present invention has shown and described the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A waterproof electronic scale, characterized in that: The scale body (2) comprises a scale plate (1) arranged on the top of the scale body (2); a weighing sensor, a watertight compartment (10), a circuit compartment (12) and a plurality of sealing rings (6) are arranged inside the scale body (2); a second water-blocking baffle plate (4) extending upward is also arranged on the scale body (2); a first water-blocking baffle plate (3) extending downward is correspondingly arranged on the scale plate (1); the first water-blocking baffle plate (3) and the second water-blocking baffle plate (4) are meshed with each other but are not connected.

2. A waterproof electronic scale according to claim 1, characterized in that: The second water blocking baffle plate (4) is also provided with a water guide opening (5).

3. A waterproof electronic scale according to claim 1, characterized in that: A scale body bottom cover (7) is provided at the bottom of the scale body (2), and sealing grooves (8) are provided around and inside the scale body bottom cover (7) at positions corresponding to the watertight compartment (10).

4. A waterproof electronic scale according to claim 3, characterized in that: The watertight compartment (10) comprises an upper connection point of the weighing sensor installation compartment, a lower connection point of the weighing sensor installation compartment and a connection point of the scale body bottom cover (7); a cable waterproof connector (9) is provided on the watertight compartment (10).

5. A waterproof electronic scale according to claim 4, characterized in that: A waterproof connector (11) is provided outside the scale body (2).

6. A method for implementing a waterproof electronic scale, for implementing a waterproof electronic scale according to any one of claims 1 to 5, characterized in that: include: A water-blocking baffle plate is provided between the scale pan (1) and the scale body (2) and is meshed with each other but not connected. The second water-blocking baffle plate (4) extending from the scale body (2) extends upward, and the first water-blocking baffle plate (3) extending from the scale pan extends downward. The baffles of the scale pan (1) and the scale body (2) intersect with each other, so that water cannot directly rush out of the scale pan base. The impact force of the water rebounds in the intersecting baffles. As the number of baffles increases, the water splashing toward the internal baffles gradually decreases and loses its impact force. The baffle base of the scale body (2) is high in the middle and low around, and the baffle is provided with cross water guide openings (5) for guiding water that has lost its impact force due to gravity to the outside of the scale body along the baffle base of the scale body.

7. A method for implementing a waterproof electronic scale according to claim 6, characterized in that: Also includes: The weighing sensor and other electronic components are placed in a watertight compartment (10) and a circuit compartment (12) respectively, wherein the connection between the weighing sensor and the scale pan (1) is provided with an opening; The weighing sensor and other parts of the electronic scale are sealed using a sealing ring (6) and a corresponding sealing groove (8).

8. A method for implementing a waterproof electronic scale according to claim 6, characterized in that: Also includes: A sealing ring (6) is used to seal the circuit compartment (12) and the outside of the scale body (2), and an external interface is provided, and the interface uses a waterproof connector (11).

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