Circuit board and liquid heater
By designing fixing slots on the circuit board to fix the cable, the problems of loosening and wear of the cables in the prior art are solved, and higher practicality and stability are achieved.
Patent Information
- Application Number
- CN202323627779.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The structure used for fixed wiring on existing circuit boards is complex and has low practicality, which makes the wiring easy to loosen or fall off, and friction with the board body leads to wear.
A circuit board is designed. By opening a fixed groove near the socket on the plate body, the cable is led out of the plug-in port and then passed through the fixing groove. The fixing groove latches the outlet path of the cable, transferring the pulling force to prevent loosening and wear.
The wiring is fixed and positioned through the fixing groove, which solves the problems of loose and wear of the wiring. It has a simple structure and high practicality, which improves the stability and safety of the circuit board.
Smart Images
Figure CN222621255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of small household appliances, in particular to a circuit board and a liquid heater. Background Art
[0002] Liquid heaters such as electric kettles and water bottles are generally provided with a circuit board, which includes a board body, a socket is provided on the board body, and a flat cable is inserted into the socket.
[0003] The flat cables used on the market are generally soft. After being plugged in, the contact between the cable and the socket may easily loosen or even fall off due to the external pulling force on the cable. In severe cases, the socket or the cable itself may be damaged and need to be replaced.
[0004] In addition, the soft cable is not fixed to the board during use. When subjected to external force, the cable will rub against the sharp edges of the board. Over time, the cable will wear out, posing a serious safety risk.
[0005] Therefore, some technologies have improved the circuit board and designed a structure for fixing the wiring. For example, patent CN219628005U discloses a circuit board that is convenient for wiring, including a circuit board body, a wiring board installed above the circuit board body, and a plurality of wire fixing structures arranged on the wiring board, the wire fixing structures including threading holes, limit rods, springs and clamps. The wire fixing structure in this patent includes multiple parts such as threading holes, limit rods, springs and clamps, and has a complex structure and low practicality.
[0006] Another example is the patent CN219628005U, which discloses a circuit board that is convenient for wiring. It includes a circuit board body and a wiring device installed on one side of the circuit board. The threaded rod is driven to rotate by turning the handle, and the direction of the spiral coil of the first movable column is to the left, and the direction of the spiral coil of the second movable column is to the right. The threaded rod passes through the first movable column and the second movable column. When the threaded rod rotates, the first movable column and the second movable column will shrink inward, and a limit plate is passed between the first movable column and the second movable column. The wires are passed through the limit plate to achieve fixed sorting of the wires. The wiring device in this patent includes multiple components such as a threaded rod, a first movable column, a second movable column, and a limit plate, and has a complex structure and low practicality.
[0007] It can be seen that although the above two patents both design a structure for fixing the wiring harness on the circuit board, the structure for fixing the wiring harness involves multiple components, has a complex structure, and has low practicality. Utility Model Content
[0008] In view of the shortcomings of the existing circuit board for fixing the cable that the structure is relatively complicated and has low practicality, the purpose of the utility model is to provide a circuit board and a liquid heater, to improve the design of the circuit board, to design a fixing seat to fix the cable, to prevent the cable from loosening or falling off on the socket, to avoid damage to the cable due to friction with the edge of the board, and the fixing seat has a simple structure and high practicality.
[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a circuit board, comprising a board body, a socket is provided on the board body, a flat cable is inserted into the wire insertion port of the socket, a fixing groove is provided on the board body adjacent to the socket, and the flat cable passes through the fixing groove after being led out from the wire insertion port.
[0010] In this technical solution, a fixed groove is formed near the plug-in port of the socket on the board, and one end of the cable is fixed in the plug-in port of the socket. After the cable is led out, it passes through the fixed groove. The cable outlet path is clamped by the fixed groove, and part of the pulling force of the cable is transferred to the board to prevent the cable and the plug-in port from loosening or even falling off, and alleviate the wear problem of the cable or the socket due to the pulling force. The cable is not easy to shake due to the clamping of the fixed groove, which solves the problem of cable wear caused by friction between the cable and the sharp edge of the board due to the shaking of the cable. The cable is fixed and clamped by the fixed groove, which has a simple structure and high practicality.
[0011] The utility model is further configured as follows: the fixing groove is a structure opened on the board body, and the flat cable passes through the fixing groove and then passes out from the other side of the board body. Through this configuration, the fixing groove is directly opened on the board body, which is an integrated structure on the board body, further simplifying the overall structure of the circuit board, and the flat cable is led out from the socket on one side of the board body, passes through the fixing groove, and passes out from the other side of the board body, so that the fixing effect of the flat cable is better, and the flat cable is less likely to shake when being pulled.
[0012] The utility model is further configured such that the extension direction of the fixing groove is parallel to the extension direction of the wire insertion port. With this configuration, the cable usually has a certain width. In order to prevent the cable from being bent, folded, or other poor installation during the process of passing through the fixing groove, the extension direction of the fixing groove is parallel to the extension direction of the wire insertion port, so that the cable can pass through the fixing groove in a natural state after being led out from the wire insertion port, preventing the cable from being bent, folded, or other poor installation.
[0013] The utility model is further configured as follows: the distance between the fixed groove and the plug-in port is D1, the width of the cable is D2, and D1 / D2=0.5~5. Through this configuration, the distance between the fixed groove and the plug-in port should be neither too close nor too far. If the fixed groove is too close to the plug-in port, the cable needs to be bent at a large angle after being led out of the plug-in port to pass through the fixed groove, which is easy to cause the cable to be squeezed and damaged, which is not conducive to the cable passing through the fixed groove smoothly. If the fixed groove is too far from the plug-in port, the cable length between the fixed groove and the plug-in port is long, which will affect the fixing effect of the fixed groove on the cable. Therefore, the distance between the fixed groove and the plug-in port is set to 0.5 to 5 times the width of the cable.
[0014] The utility model is further configured as follows: the opening area of the fixed groove is S1, the cross-sectional area of the cable is S2, and S1 / S2=1.1~2. Through this configuration, in order to prevent the wall of the fixed groove from squeezing the cable, the opening area of the fixed groove is larger than the cross-sectional area of the cable, but the opening area of the fixed groove should not be too large or too small. If the opening area of the fixed groove is too large, the cable has a large space for movement in the fixed groove, and the cable is easy to loosen. If the opening area of the fixed groove is too small, the cable is easily squeezed and damaged in the fixed groove.
[0015] The utility model is further configured as follows: there are multiple fixing grooves, and the multiple fixing grooves are arranged in sequence along the outlet direction of the cable. Through this configuration, in order to further increase the fixing effect of the fixing groove on the cable, multiple fixing grooves can be provided, and the multiple fixing grooves are arranged in sequence along the outlet direction of the cable. After the cable is led out from the cable insertion port, it reciprocates through the multiple fixing grooves, and the cable is fixed and limited by the multiple fixing grooves, so that the position of the cable is more stable.
[0016] The utility model is further configured as follows: the distance between the fixing groove and the wire insertion port is D1, the spacing between adjacent fixing grooves is D3, and D3≥D1. Through this configuration, the cable is led out from the wire insertion port and passes through the first fixing groove, and the cable is initially positioned through the first fixing groove. Therefore, the distance between the wire insertion port and the first fixing groove is relatively close, and the first fixing groove plays a major role in fixing the cable. The subsequent fixing grooves are relatively far apart, and the other fixing grooves play an auxiliary role in fixing the cable.
[0017] The utility model is further configured as follows: a fixing seat is provided on the plate body, a fixing groove is provided on the fixing seat, and the fixing groove is arranged opposite to the wire insertion port. With this configuration, it is also possible not to make a groove on the plate body, but to set a fixing seat on the plate body, and to open a fixing groove on the fixing seat, so that after the cable is led out from the wire insertion port, it passes through the fixing groove on the fixing seat, and the fixing seat and the socket are arranged on the same side of the plate body, so the cable does not need to be bent after being led out, and the cable is fixed and limited by the fixing groove.
[0018] The utility model is further configured as follows: the fixing seat is fixed on the plate body by assembly. Through this configuration, the fixing seat and the plate body are separate structures, which are installed on the plate body by assembly, and the fixed position of the cable can be completed with little modification to the existing plate body structure.
[0019] The utility model provides the following technical solution: a liquid heater, comprising a container for containing liquid and a heating device for heating the liquid, wherein the heating device comprises the above-mentioned circuit board.
[0020] The advantages of the utility model are: 1) A fixed groove is formed by opening a groove near the plug-in port of the socket on the board, and one end of the cable is fixed in the plug-in port of the socket. After the cable is led out, it passes through the fixed groove. The cable outlet path of the cable is clamped by the fixed groove, and part of the pulling force of the cable is transferred to the board to prevent the cable and the plug-in port from loosening or even falling off, and alleviate the wear problem of the cable or the socket due to the pulling force. The cable is not easy to shake due to the clamping of the fixed groove, which solves the problem of cable wear caused by friction between the cable and the sharp edge of the board due to the shaking of the cable. The cable is fixed and clamped by the fixed groove, which has a simple structure and high practicality; 2) The fixed groove can be opened on the board, or it can be set on a fixed seat installed on the board. After the cable is led out from the plug-in port, it passes through the fixed groove on the fixed seat. The fixed seat and the socket are set on the same side of the board, so the cable does not need to be bent after it is led out, and the cable is fixed and limited by the fixed groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of the circuit board in the first embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the circuit board with the wiring installed in the first embodiment of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the liquid heater in the fourth embodiment of the present utility model.
[0024] Reference numerals: circuit board 10 , board body 11 , socket 12 , fixing slot 13 , flat cable 20 , container 30 . DETAILED DESCRIPTION
[0025] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0027] Embodiment 1:
[0028] Reference Figure 1 , Figure 2 In one embodiment of the utility model, a circuit board 10 includes a board body 11, a socket 12 is provided on the board body 11, a flat cable 20 is inserted into the wire insertion port of the socket 12, a fixing groove 13 is provided on the board body 11 adjacent to the socket 12, and the flat cable 20 passes through the fixing groove 13 after being led out from the wire insertion port. In this embodiment, a fixing groove 13 is formed near the plug-in port of the socket 12 on the board 11, and one end of the cable 20 is fixed in the plug-in port of the socket 12. After the cable 20 is led out, the other end of the cable 20 passes through the fixing groove 13, and the outlet path of the cable 20 is clamped by the fixing groove 13, so that part of the pulling force of the cable 20 when being pulled is transferred to the board 11, so as to prevent the cable 20 and the plug-in port from loosening or even falling off, and alleviate the wear problem of the cable 20 or the socket 12 caused by the pulling force. The cable 20 is not easy to shake due to the clamping of the fixing groove 13, so as to solve the problem that the cable 20 shakes and causes the cable 20 to rub against the sharp edge of the board 11, thereby causing the cable 20 to wear. The cable 20 is fixed and clamped by the fixing groove 13, which has a simple structure and high practicality.
[0029] Specifically, the fixing groove 13 is directly opened on the board body 11, which is an integrated structure on the board body 11, further simplifying the overall structure of the circuit board 10, and after the flat cable 20 is led out from the socket 12 on one side of the board body 11, it passes through the fixing groove 13 and passes out from the other side of the board body 11, so that the fixing effect of the flat cable 20 is better, and the flat cable 20 is less likely to shake when being pulled.
[0030] The flat cable 20 usually has a certain width. In order to prevent the flat cable 20 from being bent, folded, or other improper installations when passing through the fixing groove 13, the extension direction of the fixing groove 13 is parallel to the extension direction of the wire insertion port, so that the flat cable 20 can pass through the fixing groove 13 in a natural state after being led out from the wire insertion port, preventing the flat cable 20 from being bent, folded, or other improper installations.
[0031] The distance between the fixing groove 13 and the plug-in port should not be too close or too far. If the fixing groove 13 is too close to the plug-in port, the cable 20 needs to be bent at a large angle after being led out of the plug-in port to pass through the fixing groove 13, which is easy to cause the cable 20 to be squeezed and damaged, which is not conducive to the cable 20 passing through the fixing groove 13 smoothly. If the fixing groove 13 is too far from the plug-in port, the length of the cable 20 between the fixing groove 13 and the plug-in port is long, which will affect the fixing effect of the fixing groove 13 on the cable 20. Specifically, the distance between the fixing groove 13 and the plug-in port is D1, the width of the cable 20 is D2, and D1 / D2=0.5~5.
[0032] In order to prevent the wall of the fixing groove 13 from squeezing the cable 20, the opening area of the fixing groove 13 should be larger than the cross-sectional area of the cable 20, but the opening area of the fixing groove 13 should not be too large or too small. If the opening area of the fixing groove 13 is too large, the cable 20 has a large movable space in the fixing groove 13, and the cable 20 is easy to loosen. If the opening area of the fixing groove 13 is too small, the cable 20 is easily squeezed and damaged in the fixing groove 13. Specifically, the opening area of the fixing groove 13 is S1, the cross-sectional area of the cable 20 is S2, and S1 / S2=1.1~2.
[0033] Embodiment 2:
[0034] In this embodiment, in order to further increase the fixing effect of the fixing groove 13 on the cable 20, a plurality of fixing grooves 13 are provided on the plate body 11, and the plurality of fixing grooves 13 are arranged in sequence along the outlet direction of the cable 20. After being led out from the plug port, the cable 20 reciprocates through the plurality of fixing grooves 13, and the cable 20 is fixed and positioned by the plurality of fixing grooves 13, so that the position of the cable 20 is more stable. The number of fixing grooves 13 is preferably 2 to 6, and when the cable 20 passes through the fixing grooves 13, it can pass through all the fixing grooves 13, or selectively pass through a part of the fixing grooves 13, and according to the number of the fixing grooves 13, for example, when the number of the fixing grooves 13 is odd, the cable 20 is outlet from the other side of the side where the socket 12 is located, and when the number of the fixing grooves 13 is even, the cable 20 is outlet from the same side of the side where the socket 12 is located.
[0035] The cable 20 is led out from the cable insertion port and passes through the first fixing groove 13. The cable 20 is initially positioned by the first fixing groove 13. Therefore, the cable insertion port is close to the first fixing groove 13. The first fixing groove 13 plays a major role in fixing the cable 20. The following fixing grooves 13 are far apart. The other fixing grooves 13 play an auxiliary role in fixing the cable 20. Specifically, the distance between the fixing groove 13 and the cable insertion port is D1, and the spacing between adjacent fixing grooves 13 is D3, and D3≥D1.
[0036] For other contents not described in this embodiment, please refer to Embodiment 1.
[0037] Embodiment three:
[0038] In this embodiment, the plate body 11 is not directly grooved, but a fixing seat is provided on the plate body 11, and the fixing groove 13 is provided on the fixing seat, and the fixing groove 13 is arranged opposite to the plug-in port. By providing a fixing seat on the plate body 11 and opening the fixing groove 13 on the fixing seat, the flat cable 20 is led out from the plug-in port and passes through the fixing groove 13 on the fixing seat to be fixed in position. The fixing seat and the socket 12 are provided on the same side of the plate body 11, so the flat cable 20 does not need to be bent after being led out, and has a good installation condition.
[0039] In actual production, the fixing seat can be fixed on the board body 11 by subsequent assembly, so that the fixing seat and the board body 11 are separate structures, and the fixing seat can be used as a separate component and installed on the board body 11 by assembly, so that the cable 20 can be fixed in place with relatively few structural changes to the existing circuit board 10.
[0040] For other contents not described in this embodiment, please refer to Embodiment 1.
[0041] Embodiment 4:
[0042] Reference Figure 3 In one embodiment of the utility model, the liquid heater comprises a container 30 and a heating device. The container 30 is used to contain liquid. The heating device is used to heat the liquid in the container 30. The heating device comprises the circuit board 10 in the above embodiment.
[0043] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.
Claims
1. A circuit board, comprising a board body, wherein a socket is provided on the board body, and a flat cable is inserted into a wire insertion port of the socket, characterized in that: A fixing groove is provided on the plate body at a position adjacent to the socket. The flat cable passes through the fixing groove after being led out from the cable insertion port, and the outlet path of the flat cable is positioned by the fixing groove.
2. A circuit board according to claim 1, characterized in that: The fixing groove is a structure opened on the plate body, and the cable passes through the fixing groove and then comes out from the other side of the plate body.
3. A circuit board according to claim 2, characterized in that: The extending direction of the fixing groove is parallel to the extending direction of the wire insertion port.
4. A circuit board according to claim 1, 2 or 3, characterized in that: The distance between the fixing groove and the wire insertion port is D1, the width of the wiring harness is D2, and D1 / D2=0.5~5.
5. A circuit board according to claim 1, 2 or 3, characterized in that: The opening area of the fixing groove is S1, the cross-sectional area of the cable is S2, and S1 / S2=1.1~2.
6. A circuit board according to claim 1, 2 or 3, characterized in that: There are a plurality of fixing grooves, and the plurality of fixing grooves are arranged in sequence along the outlet direction of the cable.
7. A circuit board according to claim 6, characterized in that: The distance between the fixing groove and the wire insertion port is D1, and the distance between adjacent fixing grooves is D3, where D3≥D1.
8. A circuit board according to claim 1, characterized in that: The plate body is provided with a fixing seat, and the fixing groove is arranged on the fixing seat, and the fixing groove is arranged opposite to the wire insertion port.
9. A circuit board according to claim 8, characterized in that: The fixing seat is fixed on the plate body by assembly.
10. A liquid heater, comprising a container for containing liquid and a heating device for heating the liquid, characterized in that: The heating device comprises a circuit board according to any one of claims 1 to 9.