Battery box switch connecting structure for electric blanket and electric blanket power supply box
Patent Information
- Application Number
- CN202521838258.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-08-27
AI Technical Summary
这种焊接连接方式虽然结构简单、成本较低，但在实际使用过程中存在明显缺陷：开关作为频繁操作部件易因机械磨损、电气老化或意外撞击等原因损坏，而焊接固定的开关难以单独拆卸更换，导致维修时需整体更换电池盒或电路模块，不仅增加了用户的使用成本，也造成了资源浪费
在外壳体开设有安装腔，进而使得安装腔内可以存放电池，且线路板组件放置在安装腔内，可以使得安装腔内的电池与线路板组件电连接配合使用。同时在外壳体靠近线路板组件的外部开设有过孔，且过孔连通于安装腔，使得开关按键能够穿过过孔抵接于线路板组件的控制端。又因为安装腔的内周壁凸设有连接平台，且开关按键卡接于所述连接平台，使得当需要更换开关按键时，可以通过卡接的结构将开关按键拆除出来。与现有技术相比，使用开关件卡接于连接平台，避免了焊接连接的方式，规避了焊接固定的开关难以单独拆卸更换从而导致维修时需整体更换电池盒的情况。同时采用开关按键卡接于连接平台的方式，避免了使用焊接工艺将开关按键与外壳体连接起来时，导致线路板组件受热过度而损坏线路板组件的情况。
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Figure CN224841585U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the technical field of electric blanket battery boxes, and in particular to a battery box switch connection structure and an electric blanket power supply box for electric blankets. Background Technology
[0002] Currently, household appliances such as electric blankets often use external battery boxes for power supply. These battery boxes usually contain switching components to control the on / off state of the circuit.
[0003] In existing technologies, battery box switches are mostly fixed to circuit boards or battery connection terminals by welding. While this welding connection method is simple in structure and low in cost, it has significant drawbacks in practical use: switches, as frequently operated components, are prone to damage due to mechanical wear, electrical aging, or accidental impacts. Welded switches are difficult to disassemble and replace individually, leading to the need to replace the entire battery box or circuit module during maintenance, increasing user costs and wasting resources. Furthermore, the welding process itself can cause heat damage to the switch components, reducing their reliability; simultaneously, disassembling the welded points during maintenance can easily damage the internal structure of the battery box, further expanding the scope of the fault. Therefore, existing battery box switch fixing methods are insufficient in terms of maintainability and economy. Utility Model Content
[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a battery box switch connection structure and electric blanket power supply box for electric blankets that facilitates the disassembly and replacement of switch buttons.
[0005] The purpose of this disclosure is achieved through the following technical solution: A battery box switch connection structure for an electric blanket includes a housing, an end cap, a circuit board assembly, and a switch button. The end cap covers the end of the housing, and the housing has a mounting cavity. The circuit board assembly is disposed within the mounting cavity, which stores a battery. A through-hole is formed on the outer wall of the housing near the circuit board assembly, and the through-hole communicates with the mounting cavity. A connecting platform protrudes from the inner peripheral wall of the mounting cavity. A connecting portion is disposed adjacent to the through-hole, and the switch button passes through the through-hole and abuts against the control end of the circuit board assembly. The switch button is engaged with the connecting portion.
[0006] In one embodiment, the switch button consists of a button part and a connecting part. The button part is disposed in the through hole, and the connecting part is disposed in the mounting cavity. The button part is provided with an abutting end, which abuts against the control end of the circuit board assembly.
[0007] In one embodiment, the connecting portion is disposed adjacent to the connecting platform, the connecting portion has a limiting port, and the end face of the connecting platform is disposed at the limiting port.
[0008] In one embodiment, the connecting platform is further provided with a limiting block, which fits against the side wall of the connecting part.
[0009] In one embodiment, the button portion is slidably connected to the through hole.
[0010] In one embodiment, the end cap includes an end cap body and a plurality of buckles, the plurality of buckles being arranged around the outer periphery of the end cap body, and the peripheral wall of the mounting cavity being provided with a plurality of connecting blocks, the plurality of connecting blocks being arranged around the peripheral wall of the mounting cavity, and each buckle being engaged with each of the connecting blocks.
[0011] In one embodiment, the circuit board assembly includes a circuit board body and a switch trigger, wherein the switch button abuts against the control terminal of the switch trigger, and the circuit board body is electrically connected to the switch trigger.
[0012] In one embodiment, the battery box switch connection structure for electric blankets further includes a light-emitting element, and a light-transmitting hole is provided on the side of the outer casing near the circuit board body, and the light-emitting terminal of the light-emitting element is disposed in the light-transmitting hole.
[0013] In one embodiment, the switch button is integrally injection molded.
[0014] An electric blanket power supply box includes a battery and a battery box switch connection structure for electric blankets as described in any of the above embodiments.
[0015] Compared with the prior art, this disclosure has at least the following advantages: The housing has a mounting cavity to house the battery, and the circuit board assembly is placed inside the cavity, allowing the battery to electrically connect and operate with the circuit board assembly. A through-hole is located on the outer surface of the housing near the circuit board assembly, connecting to the mounting cavity, allowing the switch button to pass through the through-hole and abut against the control terminal of the circuit board assembly. Furthermore, a connecting platform protrudes from the inner wall of the mounting cavity, and the switch button snaps into this platform, allowing it to be easily removed when the switch button needs replacement. Compared to existing technologies, using a switch snap-in connection to the connecting platform avoids welding connections, preventing the need to replace the entire battery box during maintenance due to the difficulty of individually disassembling and replacing welded switches. This snap-in method also avoids the risk of overheating and damaging the circuit board assembly when welding the switch button to the housing. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a battery box switch connection structure for an electric blanket according to an embodiment of the present disclosure; Figure 2 This is an exploded view of a battery box switch connection structure for an electric blanket according to an embodiment of this disclosure; Figure 3 This is a cross-sectional view of a battery box switch connection structure for an electric blanket according to an embodiment of the present disclosure; Reference numerals: 10, Battery box switch connection structure for electric blanket; 100, Outer shell; 110, Mounting cavity; 1110, Connecting platform; 1111, Limiting block; 1120, Connecting block; 1130, Light-transmitting hole; 120, Through hole; 200, End cap; 210, End cap body; 220, Buckle; 300, Circuit board assembly; 310, Circuit board body; 320, Switch trigger; 400, Switch button; 410, Button part; 420, Connecting part; 4210, Limiting port; 500, Light-emitting element. Detailed Implementation
[0018] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.
[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: like Figures 1 to 3 As shown, a battery box switch connection structure 10 for an electric blanket according to one embodiment includes a housing 100, an end cap 200, a circuit board assembly 300, and a switch button 400. The end cap 200 covers the end of the housing 100. The housing 100 has a mounting cavity 110, and the circuit board assembly 300 is disposed in the mounting cavity 110. The mounting cavity 110 is used to store battery components. A through hole 120 is provided on the outer wall of the housing 100 near the circuit board assembly 300. The through hole 120 communicates with the mounting cavity 110. A connecting platform 1110 protrudes from the inner peripheral wall of the mounting cavity 110. A connecting part 420 is disposed adjacent to the through hole 120. The switch button 400 passes through the through hole 120 and abuts against the control end of the circuit board assembly 300. The switch button 400 is engaged with the connecting platform 1110.
[0022] In this embodiment, a mounting cavity 110 is provided in the outer casing 100, allowing the battery to be stored within the cavity. The circuit board assembly 300 is placed within the mounting cavity 110, enabling the battery to be electrically connected and used with the circuit board assembly 300. A through hole 120 is provided on the outer surface of the outer casing 100 near the circuit board assembly 300, and the through hole 120 communicates with the mounting cavity 110, allowing the switch button 400 to pass through the through hole 120 and abut against the control terminal of the circuit board assembly 300. Furthermore, because a connecting platform 1110 protrudes from the inner peripheral wall of the mounting cavity 110, and the switch button 400 is snapped into the connecting platform 1110, the switch button 400 can be removed using the snap-fit structure when it needs to be replaced. Compared to existing technologies, using a switch snapped into the connecting platform 1110 avoids welding connections, preventing the difficulty of individually disassembling and replacing welded switches, which would otherwise require replacing the entire battery box during maintenance. Meanwhile, the switch button 400 is snapped onto the connection platform 1110, which avoids the situation where the circuit board assembly 300 is overheated and damaged when the switch button 400 is connected to the housing 100 by soldering.
[0023] Combination Figure 2 and Figure 3 As shown, in one embodiment, the switch button 400 is composed of a button portion 410 and a connecting portion 420. The button portion 410 is disposed in the through hole 120, and the connecting portion 420 is disposed in the mounting cavity 110. The button portion 410 is provided with an abutting end, which abuts against the control terminal of the circuit board assembly 300. It can be understood that by clearly distinguishing the switch button 400 into the exposed button portion 410 and the built-in connecting portion 420, functional separation and structural optimization are achieved. The button portion 410 is responsible for user interaction and trigger control, and its abutting end directly acts on the control terminal (such as a microswitch or contact) of the circuit board assembly 300, ensuring the accuracy and reliability of signal transmission. The connecting portion 420 is specifically responsible for mechanical anchoring with the battery box body. Through the cooperation of the buckle 220 and the slot, a snap-fit connection that can be quickly installed and removed without tools is achieved. This modular design makes the replacement of the switch button 400 extremely simple: when the switch fails, simply apply appropriate force through the through hole 120 to disengage the clip 220 from the slot, and the entire switch button 400 can be removed. Then, insert the new switch button 400 until it is securely attached, completely avoiding the maintenance difficulties caused by welding connections.
[0024] See Figure 2 and Figure 3Furthermore, the connecting portion 420 is disposed adjacent to the connecting platform 1110, and the connecting portion 420 has a limiting opening 4210, with the end face of the connecting platform 1110 disposed within the limiting opening 4210. It can be understood that by providing the limiting opening 4210 in the connecting portion 420 and having the end face of the connecting platform 1110 disposed within the limiting opening 4210, the end face of the connecting platform 1110 can be engaged with the limiting opening 4210 of the connecting portion 420. Simultaneously, by providing the limiting opening 4210 and accommodating the end face of the connecting platform 1110, this structure adds a precise radial and axial limiting layer to the engagement of the switch button 400. During use, if the switch button 400 wobbles, rotates, or shifts relative to the connecting platform 1110, the relative position between the button portion 410 and the through hole 120 is always accurately aligned. This design avoids trigger failures caused by button misalignment or jamming, and further protects the control terminal of the circuit board assembly 300 from damage due to lateral stress. The limiting structure and snap-fit fixing work together to form a mechanical connection structure that is both easy to assemble and disassemble and extremely stable and reliable.
[0025] See Figure 2 and Figure 3 In one embodiment, the connecting platform 1110 is further provided with a limiting block 1111, which abuts against the side wall of the connecting portion 420. It can be understood that the limiting block 1111 protrudes from the connecting platform 1110 and abuts against the side of the connecting portion 420, so that when the button portion 410 is pressed along the control end direction of the circuit board assembly 300, the connecting portion 420 moves along this direction. Because the connecting platform 1110 is provided with the limiting block 1111, the sliding distance of the connecting portion 420 is limited by the limiting block 1111, preventing the connecting portion 420 from detaching from the end face of the connecting platform 1110 due to excessive sliding.
[0026] Combination Figure 2 and Figure 3 Furthermore, the button portion 410 is slidably connected to the through hole 120. It can be understood that because the button portion 410 is slidably connected to the through hole 120, the button portion 410 can move toward the control terminal of the circuit board assembly 300, thereby causing the button portion 410 to abut against the control terminal of the circuit board assembly 300 to trigger the circuit board assembly 300 to operate.
[0027] See Figure 2 and Figure 3In one embodiment, the end cap 200 includes an end cap body 210 and a plurality of snap fasteners 220. The snap fasteners 220 are arranged around the outer periphery of the end cap body 210. A plurality of connecting blocks 1120 are provided on the peripheral wall of the mounting cavity 110, and each snap fastener 220 is engaged with each connecting block 1120. It can be understood that through the mutual engagement of the plurality of snap fasteners 220 and the plurality of connecting blocks 1120, a uniform and reliable connection and fixation between the end cap 200 and the outer shell 100 is achieved. This snap-fit structure replaces traditional permanent fixing methods such as screw connections or ultrasonic welding, allowing the end cap 200 to be repeatedly assembled and disassembled without tools. When the battery box needs to be cleaned, maintained, or other components (such as the circuit board assembly 300) are replaced, a convenient opening channel is provided; at the same time, the surrounding snap-fit layout ensures that the end cover 200 is subjected to uniform force, effectively preventing deformation or poor sealing caused by stress concentration at a single point, and ensuring the overall structural strength and appearance integrity of the battery box.
[0028] Combination Figure 2 and Figure 3 As shown, in one embodiment, the circuit board assembly 300 includes a circuit board body 310 and a switch trigger 320. The switch button 400 abuts against the control terminal of the switch trigger 320, and the circuit board body 310 is electrically connected to the switch trigger 320. It can be understood that when the switch button 400 abuts against the control terminal of the switch trigger 320, a force is applied to the switch button 400, causing it to abut against the control terminal of the trigger, thereby activating the trigger. Since the circuit board body 310 is electrically connected to the switch trigger 320, when the trigger is activated, the circuit board body 310 receives an electrical signal from the trigger, further activating its operation.
[0029] See Figure 2 and Figure 3 Furthermore, the battery box switch connection structure 10 for the electric blanket also includes a light-emitting element 500. A light-transmitting hole 1130 is provided on the side of the outer casing 100 near the circuit board body 310, and the light-emitting terminal of the light-emitting element 500 is disposed in the light-transmitting hole 1130. It can be understood that by setting the light-emitting element 500 (such as an LED light) and displaying its light-emitting terminal outward through the light-transmitting hole 1130, the battery box is given a status indication function. The light-emitting element 500 can be electrically connected to the circuit board body 310 to visually display the working status of the battery box.
[0030] Combination Figure 2As shown, in one embodiment, the switch button 400 is integrally injection molded. It can be understood that integral molding simplifies the manufacturing process, reduces the number of parts and assembly steps, which is beneficial for improving production efficiency and reducing manufacturing costs, while ensuring product dimensional accuracy and consistency. At the same time, it avoids the connection weaknesses and potential gaps caused by assembling multiple parts, greatly improving the overall structural strength of the switch button 400.
[0031] This application also includes an electric blanket power supply box, including a battery and the battery box switch connection structure 10 for electric blankets as described in any of the above embodiments.
[0032] Compared with the prior art, this disclosure has at least the following advantages: A mounting cavity 110 is provided in the outer casing 100, allowing a battery to be stored within it. The circuit board assembly 300 is placed within the mounting cavity 110, enabling the battery to be electrically connected and used in conjunction with the circuit board assembly 300. A through hole 120 is provided on the outer surface of the outer casing 100 near the circuit board assembly 300, and the through hole 120 connects to the mounting cavity 110, allowing the switch button 400 to pass through the through hole 120 and abut against the control terminal of the circuit board assembly 300. Furthermore, a connecting platform 1110 protrudes from the inner peripheral wall of the mounting cavity 110, and the switch button 400 is snapped into the connecting platform 1110. This allows the switch button 400 to be removed via the snap-fit structure when it needs to be replaced. Compared to existing technologies, using a switch snap-fit onto the connecting platform 1110 avoids welding connections, preventing the need to replace the entire battery box during maintenance due to the difficulty of individually disassembling and replacing a welded switch. Meanwhile, the switch button 400 is snapped onto the connection platform 1110, which avoids the situation where the circuit board assembly 300 is overheated and damaged when the switch button 400 is connected to the housing 100 by soldering.
[0033] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A battery box switch connection structure for an electric blanket, characterized in that, The device includes a housing, an end cap, a circuit board assembly, and a switch button. The end cap covers the end of the housing, and the housing has a mounting cavity. The circuit board assembly is disposed within the mounting cavity, which is used to store a battery. A through-hole is formed on the outer wall of the housing near the circuit board assembly, and the through-hole communicates with the mounting cavity. A connecting platform protrudes from the inner peripheral wall of the mounting cavity, and the connecting platform is disposed adjacent to the through-hole. The switch button passes through the through-hole and abuts against the control end of the circuit board assembly, and the switch button is engaged with the connecting platform.
2. The battery box switch connection structure for an electric blanket according to claim 1, characterized in that, The switch button consists of a button part and a connecting part. The button part is disposed in the through hole, and the connecting part is disposed in the mounting cavity. The button part is provided with an abutting end, which abuts against the control end of the circuit board assembly.
3. The battery box switch connection structure for an electric blanket according to claim 2, characterized in that, The connecting part is disposed adjacent to the connecting platform, the connecting part has a limiting port, and the end face of the connecting platform is disposed at the limiting port.
4. The battery box switch connection structure for an electric blanket according to claim 3, characterized in that, The connecting platform is also provided with a limiting block, which fits against the side wall of the connecting part.
5. The battery box switch connection structure for an electric blanket according to claim 2, characterized in that, The button is slidably connected to the through hole.
6. The battery box switch connection structure for an electric blanket according to claim 1, characterized in that, The end cap includes an end cap body and a plurality of buckles. The plurality of buckles are arranged around the outer periphery of the end cap body. The peripheral wall of the mounting cavity is provided with a plurality of connecting blocks. The plurality of connecting blocks are arranged around the peripheral wall of the mounting cavity. Each buckle is correspondingly engaged with each of the connecting blocks.
7. The battery box switch connection structure for an electric blanket according to claim 6, characterized in that, The circuit board assembly includes a circuit board body and a switch trigger, wherein the switch button abuts against the control terminal of the switch trigger, and the circuit board body is electrically connected to the switch trigger.
8. The battery box switch connection structure for an electric blanket according to claim 7, characterized in that, The battery box switch connection structure for electric blankets also includes a light-emitting element. A light-transmitting hole is provided on the side of the outer shell near the circuit board body, and the light-emitting terminal of the light-emitting element is disposed in the light-transmitting hole.
9. The battery box switch connection structure for an electric blanket according to claim 1, characterized in that, The switch button is integrally injection molded.
10. A power supply box for an electric blanket, characterized in that, Includes a battery and a battery box switch connection structure for an electric blanket as described in any one of claims 1 to 9.