CN211740375U - Weight sensor and goods shelf - Google Patents
Weight sensor and goods shelf Download PDFInfo
- Publication number
- CN211740375U CN211740375U CN201922092421.2U CN201922092421U CN211740375U CN 211740375 U CN211740375 U CN 211740375U CN 201922092421 U CN201922092421 U CN 201922092421U CN 211740375 U CN211740375 U CN 211740375U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- wire harness
- circuit
- weight sensor
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides a weight sensor and a goods shelf, wherein the goods shelf comprises more than two weight sensors, and each weight sensor comprises a shell, a circuit board, a weight sensing device, a first wire harness and a second wire harness; the circuit board is arranged in the shell; the weight sensing device is arranged in the shell and connected to the circuit board; one end of the first wire harness is connected to the circuit board, and the other end of the first wire harness is provided with a first connector; one end of the second wire harness is connected to the circuit board, and the other end of the second wire harness is provided with a second connector. The utility model discloses an one end embedding circuit board at current retransmission sensilla has kept the appearance of original product, can not carry out special requirement in the aspect of the product installation to realize that a plurality of weighing transducer can directly concatenate and do not need extra keysets, reduced external circuit board and external circuit quantity, and the wiring is easy, can direct output digital signal, very convenient.
Description
Technical Field
The utility model relates to a device, specifically speaking relates to a weight sensor and goods shelves are stacked to goods for retail.
Background
In the traditional shopping mode of retail industry, each supermarket or convenience store needs to have full-time goods distributor, and the labor cost is high. With the development of electronic payment technology, identity perception technology and cloud computing technology, the unmanned detection technology has high feasibility.
In the solution of the unmanned supermarket or the unmanned convenience store, the computer continuously monitors the occurrence of each shopping behavior, needs to solve the problem of goods identification, needs to identify the types and the quantity of goods taken away or put back, and then calculates the price according to the unit price of the goods of the types so as to settle accounts.
To such a problem, there is a goods shelves of a perception goods among the prior art, but need set up a large amount of sensors in the goods shelves and be used for detecting, is equipped with a plurality of trays that parallel in each layer goods shelves, all need to correspond under each tray and set up an at least weight induction system, and in order to realize the mounting means who concatenates, each weight induction system all outputs analog signal. Because the collected analog signals cannot directly enter a digital computer for processing and the analog signals are processed only after being converted into digital signals through a circuit board, a large number of external circuits are needed to correspondingly connect each analog signal to one circuit board and then to the digital computer.
The defects of the scheme are that the size of the shelf is limited and fixed, a plurality of circuit boards need to be installed, a large number of external circuits are needed, wiring is prone to error, the shelf is messy, management is inconvenient, and operation and maintenance costs are high. Moreover, the analog signal of each weight sensing device needs to be converted into a digital signal to be identified and utilized, so that the operation is inconvenient.
Accordingly, there is a need to provide a new weight sensor and a shelf to overcome the problems of the prior art.
Disclosure of Invention
An object of the utility model is to provide a weight sensor and goods shelves, can solve current goods shelf location a lot of circuit boards and a large amount of external circuit and lead to goods shelves mixed and disorderly and manage inconveniently, the higher technical problem of operation and maintenance cost can direct output digital signal, convenient operation.
In order to achieve the above object, the present invention provides a weight sensor, including a housing, a circuit board, a weight sensing device, a first wire harness and a second wire harness; in particular, the housing includes first and second oppositely disposed side walls; the circuit board is arranged in the shell; the weight sensing device is arranged in the shell and is connected to the circuit board; one end of the first wire harness penetrates through the first side wall to be connected to the circuit board, and the other end of the first wire harness is provided with a first connector; one end of the second wire harness penetrates through the second side wall to be connected to the circuit board, and the other end of the second wire harness is provided with a second connector.
Further, the weight sensing device comprises an analog signal output end; the circuit board comprises an analog-to-digital conversion circuit connected to the analog signal output terminal.
Further, the circuit board comprises a communication circuit connected to the analog-to-digital conversion circuit; the second wire harness includes a second data line connected to the communication circuit; the first wire harness includes a first data line connected to the second data line.
Further, the circuit board includes a DC-DC voltage step-down circuit; the first harness includes a first power line connected to the filter circuit through the DC-DC buck circuit; the second harness includes a second power line connected to the first power line.
Further, the housing includes a first through hole and a second through hole; the first through hole penetrates through the first side wall, and the first wire harness penetrates through the first through hole; the second through hole penetrates through the second side wall, and the second wire harness penetrates through the second through hole.
Further, the first through hole and the second through hole are arranged oppositely.
Furthermore, a groove is formed in one side wall of the shell and extends into the shell; the circuit board is arranged in the groove.
Further, the first wire harness and the second wire harness respectively penetrate through two opposite side walls of the groove; and/or the groove is filled with silica gel.
The invention also provides a goods shelf which comprises more than two weight sensors.
Further, the first connector of one of the weight sensors is detachably connected to the second connector of the other of the weight sensors.
The beneficial effects of the utility model reside in that, a weight sensor and goods shelves are provided, one end embedding circuit board through at current retransmission sensilla, the appearance of original product has been kept, can not carry out special requirement in the aspect of the product installation, and draw first connector and the second connector that can series connection each other, realize that a plurality of weight sensors can directly concatenate and do not need extra keysets, and external circuit board and external circuit quantity have been reduced, and the wiring is easy, the management is convenient, weight sensor can direct output digital signal, directly pass through RS485 bus transmission signal, it is very convenient, operation and maintenance cost are lower.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of the overall structure of the weight sensor according to embodiment 1 of the present invention;
fig. 2 is a schematic top sectional view of the weight sensor according to embodiment 1 of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of the weight sensor according to embodiment 1 of the present invention;
fig. 4 is a schematic circuit diagram of the weight sensor according to embodiment 1 of the present invention;
fig. 5 is an exploded schematic view of the weight sensor according to embodiment 2 of the present invention;
fig. 6 is a schematic structural view of the shelf of the present invention.
The various components in the figures are numbered as follows:
1. a shell body 11, a first through hole 12, a second through hole 13 and a groove,
14. silica gel 15, a first shell through hole, 16, a second shell through hole,
111. a first side wall, 112, a second side wall, 2, a weight sensing device,
3. a circuit board 31, a signal amplifying circuit 32, an analog-to-digital conversion circuit,
33. a filter circuit 34, a communication circuit 35, a DC-DC voltage reduction circuit,
36. a state detection circuit 4, a first wire harness 40, a first connector,
41. a first data line 42, a first power supply line 5, a second wire harness,
50. a second connector, 51, a second data line, 52, a second power line,
6. a mounting seat 61, a mounting seat through hole 7, a support piece 71 and a support piece through hole,
10. weight sensor, 20, shelf board, 30, tray, 100, shelf.
Detailed Description
The preferred embodiments of the present invention will be fully described below with reference to the accompanying drawings, so that the technical contents thereof will be more clearly understood. The present invention may be embodied in many different forms of embodiments and its scope is not limited to the embodiments described herein.
In the drawings, elements having the same structure are denoted by the same reference numerals, and elements having similar structure or function are denoted by the same reference numerals throughout. The directional terms used in the present invention, such as upper, lower, front, rear, left, right, inner, outer, upper surface, lower surface, side, top, bottom, front end, rear end, etc., are only directions in the drawings, and are used only for explaining and explaining the present invention, but not for limiting the scope of the present invention.
When certain components are described as being "on" another component, the components can be directly on the other component; there may also be an intermediate member disposed on the intermediate member and the intermediate member disposed on the other member. When an element is referred to as being "mounted to" or "connected to" another element, they may be directly "mounted to" or "connected to" the other element or indirectly "mounted to" or "connected to" the other element through an intermediate element.
Example 1
As shown in fig. 1 to 3, a first embodiment of the present invention provides a weight sensor 10, which includes a housing 1, a weight sensing device 2, a circuit board 3, a first wire harness 4, and a second wire harness 5; specifically, the housing 1 includes a first side wall 111 and a second side wall 112 disposed oppositely; the circuit board 3 is arranged in the shell 1; the weight sensing device 2 is arranged in the shell 1 and is connected to the circuit board 3; one end of the first wire harness 4 is connected to the circuit board 3 through the first sidewall 111, and the other end thereof is provided with a first connector 40; one end of the second wire harness 5 is connected to the circuit board 3 through the second sidewall 112, and the other end thereof is provided with a second connector 50.
The shell 1 is preferably made of metal, so that the circuit board 3 can dissipate heat conveniently.
As shown in fig. 4, in the present embodiment, the circuit board 3 includes a signal amplifying circuit 31, an analog-to-digital conversion circuit 32, a filter circuit 33, a communication circuit 34, and a DC-DC voltage reducing circuit 35; the output end of the weight sensing device 2 is connected with the signal amplifying circuit 31, and the signal amplifying circuit 31 is connected with the filter circuit 33 through the analog-to-digital conversion circuit 32; the filter circuit 33 is connected to the first harness 4 through the communication circuit 34; the DC-DC voltage reduction circuit 35 is connected to the filter circuit 33 for supplying power.
In this embodiment, it is preferable that the first harness 4 and the second harness 5 are both RS485 buses and have a waterproof function, so that the weight sensor 10 can directly output digital signals, that is, the first connector 40 and the second connector 50 directly transmit signals through the RS485 buses, and the first connector 40 and the second connector 50 have a waterproof function.
In this embodiment, the signal amplifying circuit 31 is a low-noise PG weight sensing device amplifying circuit. Since the output signal of the weight sensing device 2 is in mv level, it cannot be directly input into the analog-to-digital conversion circuit 20, and needs to be amplified. The amplifying circuit of the low-noise PG weight sensing device is used for amplifying the analog signals collected by the weight sensing device 2. The filtering circuit 33 can implement filtering function through a program executed by a single chip, which is the prior art and is not described herein.
Wherein the weight sensing device 2 comprises an analog signal output end; the analog-to-digital conversion circuit 34 of the circuit board 3 is connected to the analog signal output terminal through the signal amplification circuit 31, and is used for converting an analog signal into a digital signal.
In this embodiment, the second wire harness 5 includes a second data line 51 connected to the communication circuit 34; the first wire harness 4 includes a first data line 41 connected to the second data line 51. The signal transmission direction of the first data line 41 and the second data line 51 may be from the first connector 40 to the second connector 50, or from the second connector 50 to the first connector 40.
In the present embodiment, the first harness 4 includes a first power line 42 connected to the filter circuit 33 through the DC-DC voltage step-down circuit 35; the second wire harness 5 includes a second power supply line 52 connected to the first power supply line 42. The first power line 42 and the second power line 52 are used to supply power.
In this embodiment, the housing includes a first through hole 11 and a second through hole 12; the first through hole 11 penetrates the first sidewall 111, and the first harness 4 penetrates the first through hole 11; the second through hole 12 penetrates the second sidewall 112, and the second wire harness 5 penetrates the second through hole 12.
In this embodiment, the first through hole 11 and the second through hole 12 are disposed opposite to each other, so that wiring is facilitated, and the circuit board 3 is convenient to mount and wire.
In this embodiment, a groove 13 is formed in a side wall of the housing 1 and extends into the housing 1; the circuit board 3 is arranged in the groove 13. The arrangement enables the circuit board 3 to be accommodated in the shell 1, so that the structure of the weight sensor 10 is simplified, and wiring is convenient. It should be noted that, as shown in fig. 2 and 3, the circuit board 3 and the weight sensing device 2 are not connected to each other, and the groove bottom of the groove 13 and the weight sensing device 2 are not communicated with each other, so that signal interference can be avoided.
In this embodiment, the first wire harness 4 and the second wire harness 5 respectively pass through two opposite side walls of the groove 13, that is, the first wire harness 4 and the second wire harness 5 respectively pass through the first side wall 111 and the second side wall 112; and/or, be filled silica gel 14 in the recess 13, silica gel 14 has waterproof function, is used for protecting circuit board 3 does not receive water oxygen erosion.
Preferably, the silicone gel 14 fills the groove 13 and completely covers the circuit board 3. The silica gel 14 has a waterproof function for protecting the circuit board 3 from water and oxygen. The silica gel 14 is further arranged at the first through hole 11 and the second through hole 12, and can be better connected and sealed with the first wire harness 4 and the second wire harness 5, so as to protect the circuit board 3 from being corroded by water and oxygen.
It can be understood that, in the manufacturing process of the weight sensor 10, the circuit board 3 is firstly placed in the groove 13 of the housing 1, then the wires of the weight sensing device 2 and the first and second wire bundles 4 and 5 are welded in sequence, and finally the silicone gel 14 is used to fill the groove 13, the first through hole 1 and the second through hole 12 to completely cover and seal the circuit board 3, so that the circuit board 3 can be better protected from water and oxygen.
Example 2
As shown in fig. 5, the second embodiment includes all the technical features of the first embodiment, and is different in that the weight sensor 10 of the second embodiment further includes a first housing through hole 15, a second housing through hole 16, a mounting seat 6, a support member 7, a first bolt (not shown), and a second bolt (not shown); specifically, the first housing through hole 15 is provided at one end of the housing 1; the second shell through hole 16 is formed in the other end of the shell 1; the mounting seat 6 is provided with a mounting seat through hole 61, and the mounting seat through hole 61 is opposite to the first shell through hole 15; the support member 7 is provided with a support member through hole 71, and the support member through hole 71 is arranged opposite to the second housing through hole 16; the first bolt (not shown) passes through the mount through-hole 61 and the first housing through-hole 15 in this order to connect the housing 1 to the mount 6; the second bolt (not shown) passes through the support through-hole 71 and the second housing through-hole 16 in this order, and fixes the housing 1 to the support 7.
As shown in fig. 6, the present invention further provides a shelf 100, which includes more than two weight sensors 10.
In this embodiment, the shelf 100 further includes a shelf 20 for placing goods, and the weight sensor 10 is disposed in the shelf 20.
In this embodiment, the shelf 100 further comprises a tray 30, and the tray 30 is detachably mounted on the support 7; the mounting seat 6 is mounted on the frame plate 20; in the two weight sensors 10, the first connector 40 of one of the weight sensors 10 is detachably connected to the second connector 50 of the other weight sensor 10, so that the first wire harness 4 and the second wire harness 5 can be connected in series, a plurality of weight sensors 10 can be directly connected in series without an additional adapter plate, and the number of external circuit boards and external circuits is reduced. And the addresses can be given through the sequential electrifying sequence of the weight sensors 10 which are connected in series, thereby being very convenient.
The beneficial effects of the utility model reside in that, a weight sensor 10 and goods shelves 100 are provided, one end embedding circuit board 3 through at current retransmission ware, the appearance of original product has been kept, can not carry out special requirement in the aspect of the product installation, and draw out the first connector 40 and the second connector 50 that can series connection each other, realize that a plurality of weight sensors 10 can directly concatenate and do not need extra keysets, and external circuit board 3 and external circuit quantity have been reduced, and the wiring is easy, the management is convenient, weight sensor 10 can directly export digital signal, it is very convenient, and operation and maintenance cost are lower.
The above are only preferred embodiments of the present invention, which will make it clear for a person skilled in the art how to practice the invention, and these embodiments do not limit the scope of the invention. For those skilled in the art, without departing from the principle of the present invention, several improvements and decorations can be made, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A weight sensor, comprising:
the shell comprises a first side wall and a second side wall which are oppositely arranged;
the circuit board is arranged in the shell;
the weight sensing device is arranged in the shell and is connected to the circuit board;
one end of the first wire harness penetrates through the first side wall to be connected to the circuit board, and the other end of the first wire harness is provided with a first connector; and
and one end of the second wire harness penetrates through the second side wall to be connected to the circuit board, and the other end of the second wire harness is provided with a second connector.
2. The weight sensor of claim 1,
the weight sensing device comprises an analog signal output end;
the circuit board comprises an analog-to-digital conversion circuit connected to the analog signal output terminal.
3. The weight sensor of claim 2,
the circuit board comprises a communication circuit connected to the analog-to-digital conversion circuit;
the second wire harness includes a second data line connected to the communication circuit; and
the first wire harness includes a first data line connected to the second data line.
4. The weight sensor of claim 1,
the circuit board comprises a DC-DC voltage reduction circuit and a filter circuit;
the first harness includes a first power line connected to the filter circuit through the DC-DC buck circuit;
the second harness includes a second power line connected to the first power line.
5. The weight sensor of claim 1, wherein the housing comprises:
a first through hole penetrating the first sidewall, the first harness passing through the first through hole; and
and the second through hole penetrates through the second side wall, and the second wire harness penetrates through the second through hole.
6. The weight sensor of claim 5,
the first through hole and the second through hole are arranged oppositely.
7. The weight sensor of claim 1,
a groove is formed in one side wall of the shell and extends into the shell;
the circuit board is arranged in the groove.
8. The weight sensor of claim 7,
the first wire harness and the second wire harness respectively penetrate through two opposite side walls of the groove; and/or the presence of a gas in the gas,
silica gel is filled in the groove.
9. A pallet comprising two or more weight sensors according to any of claims 1-8.
10. The pallet of claim 9,
the first connector of one of the weight sensors is detachably connected to the second connector of another of the weight sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922092421.2U CN211740375U (en) | 2019-11-28 | 2019-11-28 | Weight sensor and goods shelf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922092421.2U CN211740375U (en) | 2019-11-28 | 2019-11-28 | Weight sensor and goods shelf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740375U true CN211740375U (en) | 2020-10-23 |
Family
ID=72876334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922092421.2U Active CN211740375U (en) | 2019-11-28 | 2019-11-28 | Weight sensor and goods shelf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740375U (en) |
-
2019
- 2019-11-28 CN CN201922092421.2U patent/CN211740375U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE323882T1 (en) | ELECTROSTATIC SHIELDED PROCESSING MODULE | |
| CN201083528Y (en) | Multi-platform electronic platform scale | |
| CN207636162U (en) | Novel truck scale weighing platform | |
| CN211740375U (en) | Weight sensor and goods shelf | |
| CN205294743U (en) | Fork of weighing | |
| CN110057459A (en) | The temperature detection structure of temperature wireless passive sensor and ring network cabinet | |
| US9912289B2 (en) | Distributor load cell for determining phase current in photovoltaic installations | |
| CN210710589U (en) | Weighing attachment for forklift | |
| CN207537017U (en) | A kind of Bridge Crane Control System based on PLC | |
| CN210794518U (en) | A goods shelves for in intelligent logistics storage | |
| CN104459572B (en) | Superconductive quantum interference sensor-based system based on multichannel | |
| CN203165199U (en) | Electronic architecture system | |
| CN206726000U (en) | Signal-processing board | |
| CN202633537U (en) | Dual-layer multifunctional wiring terminal | |
| CN212513265U (en) | Truck scale bearing display | |
| CN206556784U (en) | A kind of 10 kilovolts of van-type substation cable temperature sensors | |
| CN211043988U (en) | Row inserts control circuit and intelligence row and inserts based on bus control | |
| CN206161099U (en) | Capacitanc filling level sensor testing arrangement | |
| CN203965011U (en) | A kind of electronic scales | |
| CN217560772U (en) | Intelligent terminal of checkweigher | |
| CN208140770U (en) | A kind of power utility check device of intelligent sensing technology | |
| CN215239678U (en) | Water spraying device for machining of numerical control machine tool | |
| CN201796455U (en) | Electrical fire monitoring system adopting multichannel digital transformation | |
| CN205212400U (en) | Wiring structure of control box in equipment | |
| CN206772398U (en) | A kind of Separated high temperature-resistant digital weighing sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |