Electric blanket controller and electric blanket

Abstract

The electric blanket controller comprises a base, a top cover installed on the base, a circuit board and a cantilever key board, the top cover and the base are buckled to form an installation cavity, the top cover comprises an installation plate, and the installation plate is provided with a plurality of hollow grooves; the circuit board is mounted in the mounting cavity and is provided with a nixie tube matched with the hollow groove and a plurality of key contacts; the cantilever key board is installed in the installation cavity and located between the top cover and the circuit board, the cantilever key board comprises a support used for installation of the cantilever key board, a plurality of keys arranged in one-to-one correspondence with the key contacts and cantilevers used for connecting the keys and the support, and the keys are matched with the hollowed-out grooves of the installation board. The electric blanket controller has the advantages of being simple in structure, convenient to fix, place and observe temperature, simple to assemble and simple in later maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric blankets, in particular to an electric blanket controller and an electric blanket. Background Art

[0002] An electric blanket controller is a device for controlling the heating temperature of an electric blanket to ensure the comfort and safety of the user. However, existing electric blanket controllers, especially the common handle-type design, have a series of technical deficiencies, which greatly affect the user experience.

[0003] There are some problems with the internal structure of the joystick controller. The circuit board is usually installed in the shell. This design makes the circuit board not firmly fixed and easy to loosen during use. Once the circuit board is loose, it may cause poor circuit contact, which in turn affects the normal operation of the controller. In addition, this complex internal structure also brings considerable difficulties to the subsequent maintenance and overhaul. Maintenance personnel need to spend more time and energy to disassemble and assemble the controller, which not only increases the maintenance cost, but also prolongs the waiting time of users.

[0004] Secondly, the buttons of the controller in the prior art use independent cantilever buttons. On the one hand, since each button is an independently designed cantilever structure, this means that a large number of parts are included in the overall design. This not only increases the complexity of the manufacturing process, but also makes the assembly process extremely difficult. In actual operation, workers need to assemble each button to the corresponding position one by one, which undoubtedly increases production time and cost. On the other hand, the structure of the cantilever button design itself is quite complex. The complex structure not only increases the difficulty of manufacturing, but also reduces the reliability of the product. Due to the complex structure, these buttons are more prone to failure during use, such as button failure, unresponsiveness and other problems, which greatly reduces the user experience.

[0005] In summary, the existing handle-type electric blanket controller has many design deficiencies, which not only affect the stability and service life of the controller, but also reduce the user experience. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an electric blanket controller and an electric blanket with simple structure, convenient for fixed placement and temperature observation, simple assembly and simple later maintenance.

[0007] In order to solve the above technical problems, the utility model provides a technical solution, an electric blanket controller, at least comprising:

[0008] Base;

[0009] A top cover, the top cover is mounted on the base, the top cover and the base are buckled to form a mounting cavity, the top cover comprises a mounting plate, and the mounting plate is provided with a plurality of hollow grooves;

[0010] A circuit board, the circuit board is installed in the installation cavity, and the circuit board is provided with a digital tube and a plurality of key contacts matching the hollow groove;

[0011] A cantilever key plate, wherein the cantilever key plate is installed in the installation cavity and is located between the top cover and the circuit board, the cantilever key plate comprises a bracket for installing the cantilever key plate, a plurality of keys arranged in one-to-one correspondence with the key contacts, and a cantilever for connecting the keys and the bracket, the keys being adapted to the hollow grooves of the installation plate.

[0012] In a preferred embodiment, the key includes a key body with a hollow interior and a key base extending downward from the side wall of the key body, the cross-sectional area of ​​the key base is larger than the cross-sectional area of ​​the key body, and the key body is located in the hollow groove.

[0013] In a preferred embodiment, the top wall of the cavity of the key body is provided with a pressing column extending toward the key base to form a pressing column adapted to the key contact.

[0014] In a preferred embodiment, one end of the cantilever is connected to the button base, and the other end is connected to the bracket.

[0015] In a preferred embodiment, a plurality of first brackets and hooks are arranged at intervals on the inner side of the top cover around the edge of the circuit board, and the free end of the first bracket is recessed inwardly on a side close to the circuit board to form a first mounting groove, the edge of the circuit board is placed in the first mounting groove and the side on which the digital tube is arranged abuts against the first bracket, and the other side engages with the hook.

[0016] In a preferred embodiment, the base is provided with a plurality of second brackets extending toward one side of the mounting cavity and adapted to the lower edge of the circuit board, the free end of the second bracket is provided with a second mounting groove recessed away from the circuit board, the lower edge of the circuit board is placed in the second mounting groove and abuts against the second bracket.

[0017] In a preferred embodiment, the mounting plate and the base are arranged at an angle, the circuit board and the mounting plate are arranged parallel or approximately parallel, and the base is provided with a plurality of third brackets extending toward one side of the mounting cavity, and the third brackets abut against the side of the circuit board close to the base.

[0018] In a preferred embodiment, the base extends upward to form at least one fixing column, the free end of the fixing column is recessed inward to form a groove, and the top cover is provided with a threaded column extending toward one side of the installation cavity to form a corresponding threaded column, and the end of the threaded column is adapted to the groove.

[0019] In a preferred embodiment, the base is provided with a positioning groove at one end close to the mounting plate, and the mounting plate is provided with a positioning block matched with the positioning groove.

[0020] The utility model also provides an electric blanket, comprising any one of the electric blanket controllers described above.

[0021] Compared with the prior art, the electric blanket controller and the electric blanket of the utility model have the following advantages:

[0022] Beneficial effects:

[0023] (1) The electric blanket controller of the utility model comprises at least a base, a top cover, a circuit board and a cantilever key board. The cantilever key board is installed in the installation cavity and is located between the top cover and the circuit board. The cantilever key board comprises a bracket for installing the cantilever key board, a plurality of keys arranged in a one-to-one correspondence with the key contacts, and a cantilever for connecting the keys and the bracket. The keys are adapted to the hollow groove of the installation plate. The one-piece design of the cantilever key reduces the number of parts, reduces the manufacturing cost and the complexity of the manufacturing process, is simple to assemble, and has high reliability.

[0024] (2) The electric blanket controller of the utility model has a top cover which is arranged on the base, and the top cover and the base are buckled to form a mounting cavity, and the top cover includes a mounting plate which is arranged obliquely with the base and a plurality of side plates which extend from the edge of the mounting plate toward the base and are used to buckle with the base. Such a structural design facilitates the fixing and placement of the controller, avoids the risk of the controller falling and being damaged during the use of the electric blanket, and increases the service life of the controller.

[0025] (3) The electric blanket controller of the utility model has a mounting plate provided with a plurality of hollow grooves, a circuit board installed in the mounting cavity and electrically connected to the electric blanket, and is used to control the opening and temperature adjustment of the electric blanket, and the circuit board is provided with a digital tube and a plurality of key contacts that match the hollow grooves. Such a structural design enables the controller to have a temperature display function, and after the controller is fixedly placed, the inclined mounting plate is arranged facing the user, which is ergonomic, so that the user can intuitively see the heating temperature and conveniently operate and control the temperature of the electric blanket, especially for elderly users, the user experience is good.

[0026] (4) In the electric blanket controller of the utility model, a top cover is provided with a plurality of first brackets and hooks extending from the mounting plate to one side of the mounting cavity at intervals around the edge of the circuit board. The free end of the first bracket is recessed inwardly on the side close to the circuit board to form a first mounting groove. The edge of the circuit board is placed in the first mounting groove and one side provided with a digital tube abuts against the first bracket, and the other side is engaged with the hook. The base is provided with a plurality of second brackets extending to one side of the mounting cavity and adapted to the lower edge of the circuit board. The free end of the second bracket is provided with a second mounting groove recessed away from the circuit board. One end edge of the circuit board is placed in the second mounting groove and abuts against the second bracket. Such a structural design, on the one hand, enables the circuit board to be stably fixed in the mounting cavity, ensuring that it is not easy to loosen during use, and effectively protecting the circuit board from external interference and damage. On the other hand, it makes it easy to disassemble the circuit board, improving the convenience of subsequent maintenance and overhaul. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a first embodiment of an electric blanket controller of the utility model;

[0028] Figure 2 It is an overall assembly cross-sectional view of a first embodiment of an electric blanket controller of the utility model;

[0029] Figure 3 It is an exploded schematic diagram of the overall structure of a first embodiment of an electric blanket controller of the utility model;

[0030] Figure 4 It is a structural schematic diagram of a top cover of a first embodiment of an electric blanket controller of the utility model;

[0031] Figure 5 It is a structural schematic diagram of a cantilever keypad of a first embodiment of an electric blanket controller of the utility model;

[0032] Figure 6 It is a schematic structural diagram of the cantilever keypad of the first embodiment of the electric blanket controller of the utility model from another angle;

[0033] Figure 7 It is a structural schematic diagram of a base of a first embodiment of an electric blanket controller of the utility model;

[0034] Figure 8 It is a schematic diagram of the assembly of a circuit board and a top cover of a first embodiment of an electric blanket controller of the utility model;

[0035] Fig. 9 It is a schematic diagram of the assembly of a circuit board and a base of a first embodiment of an electric blanket controller of the utility model;

[0036] Fig.10This is a schematic diagram of the overall structure of a second embodiment of an electric blanket controller of the utility model;

[0037] Fig.11 It is an exploded schematic diagram of the overall structure of a second embodiment of an electric blanket controller of the utility model;

[0038] Fig.12 This is a schematic diagram of the base structure of a second embodiment of an electric blanket controller of the utility model;

[0039] Fig.13 This is a schematic diagram of the top cover structure of a second embodiment of an electric blanket controller of the utility model;

[0040] Description of reference numerals:

[0041] 1-base; 11-second bracket; 111-second mounting slot; 12-third bracket; 13-fixing column; 131-groove; 14-positioning slot; 15-connecting plate; 16-bayonet-slot structure; 17-wire outlet hole; 18-slot;

[0042] 2-top cover; 21-installation cavity; 22-installation plate; 23-side plate; 24-hollow groove; 25-first bracket; 251-first installation groove; 26-hook; 27-threaded column; 28-positioning block; 29-shielding sheet;

[0043] 3-circuit board; 31-digital tube; 32-key contact;

[0044] 4-cantilever key board; 41-bracket; 42-key; 421-key body; 422-key base; 423-pressing column; 43-cantilever;

[0045] 5- Terminal blocks. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0047] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Embodiment 1

[0050] This embodiment provides an electric blanket controller, such as Figure 1-3 As shown, the electric blanket comprises a base 1, a top cover 2, a circuit board 3 and a cantilever key board 4. The top cover is mounted on the base, and the top cover and the base are buckled to form a mounting cavity 21. The top cover comprises a mounting plate 22 arranged obliquely with the base and a plurality of side plates 23 extending from the edge of the mounting plate toward the base to be buckled with the base. The mounting plate is provided with a plurality of hollow grooves 24. The cooperation between the base and the top cover facilitates the fixing and placement of the controller, avoids the risk of the controller falling and being damaged during the use of the electric blanket, and increases the service life of the controller.

[0051] In this embodiment, the inclination angle range of the mounting plate of the top cover 2 relative to the base 1 is set to be 30°-70°.

[0052] The circuit board 3 is installed in the installation cavity 21 and is electrically connected to the electric blanket, and is used to control the opening and temperature adjustment of the electric blanket. The circuit board 3 is provided with a digital tube 31 and a plurality of key contacts 32 adapted to the hollow groove 24. The installation plate is tilted relative to the base, facing the user, and is ergonomic, which is conducive to the user to observe the temperature in real time and adjust the temperature of the electric blanket during use.

[0053] like Figure 4 As shown, the hollow groove 24 includes a first hollow groove 241 arranged corresponding to the digital tube and a plurality of second hollow grooves 242 arranged one-to-one corresponding to the key contacts.

[0054] like Figure 2 and 5 As shown, the cantilever key panel 4 is installed in the installation cavity and is located between the top cover 2 and the circuit board. The cantilever key panel includes a bracket 41 for installing the cantilever key panel, a plurality of buttons 42 arranged one by one corresponding to the button contacts 32, and a cantilever 43 for connecting the buttons and the bracket. The buttons are adapted to the second hollow groove 242 of the installation plate 22.

[0055] Preferably, the key comprises a key body 421 with a cavity inside and a key base 422 formed by the side wall of the key body extending downward, the cross-sectional area of ​​the key base is larger than the cross-sectional area of ​​the key body, and preferably, the size of the second hollow groove 242 is smaller than the cross-sectional area of ​​the key base. Figure 3 As shown, the button body 421 is located in the second hollow groove. Four mounting holes are arranged around the edge of the bracket 41, and the cantilever button plate 4 is fixedly connected to the mounting plate 22 through the mounting holes.

[0056] like Figure 6 As shown, the top wall of the cavity of the key body 421 is provided with a pressing column 423 extending toward the key base 422 to form a matching key contact.

[0057] Preferably, one end of the cantilever 43 is connected to the key base, and the other end is connected to the bracket. When the user presses the key body, the cantilever is elastically deformed due to the force, so that the pressing column contacts the key contact. This contact action transmits the control signal to the circuit board 3. When the user releases the key, the cantilever automatically returns to its original shape due to its elasticity, thereby driving the key body back to its initial position.

[0058] like Figure 4 and 7 As shown, the base extends upward to form at least one fixing column 13, the free end of the fixing column is recessed inward to form a groove 131, and the top cover is provided with a threaded column 27 extending toward one side of the installation cavity 21 to form a corresponding to the fixing column, and the end of the threaded column is adapted to the groove. The end of the threaded column is embedded in the groove of the fixing column, and the top cover and the base are accurately positioned by the cooperation between the end of the threaded column and the groove. A screw is provided in the fixing column, and the top cover and the base are covered by the cooperation between the screw and the threaded column.

[0059] In this embodiment, the base 1 is provided with four fixing columns 13 distributed in a quadrilateral shape, and the corresponding top cover is provided with four threaded columns 27. A plurality of reinforcing ribs extending from the base to the side wall of the fixing column are arranged at intervals in the circumferential direction of the fixing column 13. The reinforcing ribs increase the structural strength of the fixing column, ensure that the fixing column will not be damaged during repeated tightening of the screws, and increase the service life of the controller.

[0060] like Figure 4 As shown, the top cover is provided with a plurality of first brackets 25 and hooks 26 extending from the mounting plate 22 to one side of the mounting cavity 21 at intervals around the edge of the circuit board 3, and the free end of the first bracket is recessed inwardly at the side close to the circuit board 3 to form a first mounting groove 251.

[0061] In this embodiment, the mounting plate of the top cover 2 extends along the side wall of the threaded column 27 to form four first brackets 25. The first brackets 25 are not only used to fix the circuit board but also strengthen the structural strength of the threaded column 27, ensuring that the threaded column will not be damaged during repeated tightening of the screws, thereby increasing the service life of the controller.

[0062] like Figure 8 As shown, the edge of the circuit board 3 is placed in the first installation groove and one side provided with the digital tube 31 abuts against the first bracket, and the other side is engaged with the hook. Figure 7 As shown, the base 1 is provided with a plurality of second brackets 11 extending toward one side of the installation cavity and adapted to the lower edge of the circuit board 3. The free end of the second bracket is recessed inwardly at the side close to the circuit board 3 to form a second installation groove 111. In this embodiment, the base is symmetrically provided with two second brackets along the straight line direction. Fig. 9 As shown, the lower edge of the circuit board is placed in the second mounting groove and abuts against the second bracket. On the one hand, the circuit board is stably fixed in the mounting cavity to ensure that it is not easy to loosen during use, effectively protecting the circuit board from external interference and damage, and on the other hand, it is easy to disassemble the circuit board, improving the convenience of later maintenance and repair.

[0063] Preferably, the circuit board 3 is arranged parallel or approximately parallel to the mounting plate, and the base is provided with a plurality of third brackets 12 extending toward one side of the mounting cavity, and the third brackets abut against one side of the circuit board 3 close to the base.

[0064] In this embodiment, Figure 3 As shown, the circuit board 3 is fixedly mounted in the mounting cavity by means of the first bracket 25, the second bracket 11, the third bracket 12 and the hook 26. The circuit board 3 is arranged parallel to the mounting plate 22 and the digital tube 31 of the circuit board extends into the first hollow groove 241 of the mounting plate 22. The first hollow groove of the top cover is covered with a shielding sheet 29 for shielding the digital tube 31, through which the temperature of the electric blanket can be displayed in real time.

[0065] like Figure 7 As shown, the edge of the base extends upward to form a connecting plate 15 that matches the side plate 23 of the top cover, and the connecting plate and the side plate 23 are connected by a buckle-slot structure 16. A wire outlet hole 17 is provided at the junction of the end of the bottom plate away from the second bracket 11 and the side plate, and the wire outlet hole is provided with a slot 18 for fixing the wires.

[0066] Preferably, the card slot 18 is adapted to the wiring terminal 5, and the wire is fixed to the outlet board through the wire terminal. One end of the wire extends into the installation cavity 21 to be electrically connected to the circuit board 3, and the other end is electrically connected to the electric blanket.

[0067] Preferably, the circuit board is equipped with a central processing unit, a temperature control circuit, a display drive circuit and a switch control circuit. It should be noted that the circuit board structure in this example includes the basic structure of the circuit board of the electric blanket controller, and realizes the basic functions of display and temperature control. The structure of the circuit board of the utility model includes this basic function, but is not limited thereto.

[0068] Embodiment 2

[0069] This embodiment provides an electric blanket controller, such as Figure 10-11 As shown, it includes a base 1, a top cover 2, a circuit board 3 and a cantilever key board 4. The top cover is installed on the base, and the top cover and the base are buckled to form a mounting cavity 21. The top cover includes a mounting plate 22 arranged obliquely with the base and a plurality of side plates 23 extending from the edge of the mounting plate toward the base to be buckled with the base, and the mounting plate is provided with a plurality of hollow grooves 24.

[0070] The basic structure of the electric blanket controller of this embodiment is the same as that of the first embodiment, and will not be described in detail here. The difference is that Figure 12-13 As shown, the base 1 is provided with two fixing columns 13 distributed in a straight line on one side close to the outlet line 17, and the top cover 2 is provided with two threaded columns 27 corresponding to the fixing columns one by one. The base 1 is provided with two positioning grooves 14 distributed in a straight line at the other end, and the mounting plate of the top cover is provided with a positioning block 28 adapted to the positioning groove 14. The top cover is covered with the base, and the positioning block is embedded in the positioning groove to ensure that the top cover and the base will not be misaligned.

[0071] Embodiment 3

[0072] This embodiment also provides an electric blanket, comprising the above-mentioned electric blanket controller.

[0073] In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric blanket controller, characterized in that: At least: Base (1); A top cover (2), the top cover being mounted on the base, the top cover and the base being buckled to form a mounting cavity (21), the top cover comprising a mounting plate (22), the mounting plate being provided with a plurality of hollow grooves (24); A circuit board (3), the circuit board being installed in the installation cavity (21), the circuit board being provided with a digital tube (31) and a plurality of key contacts (32) matching the hollow groove (24); A cantilever keypad (4), the cantilever keypad being installed in the installation cavity and being located between the top cover (2) and the circuit board (3), the cantilever keypad comprising a bracket (41) for installing the cantilever keypad, a plurality of buttons (42) arranged in one-to-one correspondence with the button contacts (32), and a cantilever (43) for connecting the buttons to the bracket, the buttons being adapted to fit into the hollow grooves (24) of the installation plate.

2. An electric blanket controller according to claim 1, characterized in that: The key (42) comprises a key body (421) with a hollow interior and a key base (422) extending downward from a side wall of the key body, the cross-sectional area of ​​the key base being larger than the cross-sectional area of ​​the key body, and the key body is located in the hollow groove (24).

3. An electric blanket controller according to claim 2, characterized in that: The top wall of the cavity of the key body (421) is provided with a pressing column (423) extending towards the key base to match the key contact (32).

4. An electric blanket controller according to any one of claims 2-3, characterized in that: One end of the cantilever (43) is connected to the key base, and the other end is connected to the bracket (41).

5. An electric blanket controller according to any one of claims 1 to 3, characterized in that: A plurality of first brackets (25) and hooks (26) are arranged at intervals on the inner side of the top cover around the edge of the circuit board (3); a free end of the first bracket is recessed inwardly at a side close to the circuit board (3) to form a first mounting groove (251); the edge of the circuit board is placed in the first mounting groove and the side on which the digital tube (31) is arranged abuts against the first bracket, and the other side is engaged with the hook.

6. An electric blanket controller according to claim 5, characterized in that: The base is provided with a plurality of second brackets (11) extending toward one side of the installation cavity and adapted to the lower edge of the circuit board (3); the free ends of the second brackets are recessed inwardly at a side close to the circuit board (3) to form a second installation groove (111); the lower edge of the circuit board is placed in the second installation groove and abuts against the second bracket.

7. An electric blanket controller according to any one of claims 1 to 3 or 6, characterized in that: The mounting plate (22) is arranged obliquely with respect to the base, the circuit board (3) is arranged parallel or approximately parallel to the mounting plate, and the base is provided with a plurality of third brackets (12) extending toward one side of the mounting cavity, and the third brackets abut against a side of the circuit board (3) close to the base (1).

8. An electric blanket controller according to any one of claims 1 to 3 or 6, characterized in that: The base extends upward to form at least one fixing column (13), the free end of the fixing column is recessed inward to form a groove (131), and the top cover is provided with a threaded column (27) extending toward one side of the installation cavity (21) to form a corresponding threaded column, and the end of the threaded column is adapted to the groove.

9. An electric blanket controller according to claim 8, characterized in that: The base is provided with a positioning groove (14) at one end close to the mounting plate (22), and the mounting plate is provided with a positioning block (28) adapted to the positioning groove.

10. An electric blanket, characterized in that: The electric blanket controller comprises the electric blanket controller according to any one of claims 1 to 9.

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