Control panel supporting box structure capable of avoiding light-off
By designing a strong and weak electric separation box structure on the washing machine control board, and using thermal insulation materials and sensor control cover plates, the fire spread caused by the open structure is solved, and the fireproof effect of rapid extinguishing and automatic heat dissipation is achieved.
Patent Information
- Application Number
- CN202422276783.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The open structure of the existing washing machine control board makes it difficult to control the fire when the electronic components are ignited, and the commonly used flame retardant methods are not effective, which can easily cause combustion of the whole machine.
A strong and weak electric current separation control board mount structure is designed, using the upper and lower cover of the box made of insulated material, and the temperature sensor and smoke sensor are combined to control the opening and closing of the cover plate to achieve automatic heat dissipation and closure and prevent the spread of fire.
Effectively prevent the spread of the fire, ensure that the flame is extinguished quickly, and improve the fire safety of the washing machine through strong and weak electric separation and automatic cooling system.
Smart Images
Figure CN223080304U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flame retardancy of washing machine control boards, and particularly relates to a control board tray box structure for preventing ignition. Background Art
[0002] Currently, common washing machines on the market are controlled by electronic components inside the control board. A common control board tray box has an open structure, which helps with heat dissipation. However, due to the open structure being in direct contact with air, and since the control board is directly installed in contact with the washing machine face frame, if an individual electronic component catches fire, the control board tray box cannot effectively organize the spread of the fire, easily causing the entire machine to catch fire. The commonly used flame retardant method is to paste tinfoil at the installation position of the face frame corresponding to the electronic components. This method cannot effectively block the fire source. Therefore, a control board with separated strong and weak electricity is designed, and a control board box cover structure is added to solve the above problems. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a control board tray box structure for preventing ignition, and solve the technical problem that when an individual component of the control board catches fire, due to the open structure being in safe contact with air, and the material of the face frame generally not having a good flame retardant effect, the spread of the fire cannot be effectively blocked.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] A control board tray box structure for preventing ignition, including a control board tray box. The control board tray box includes a connected weak electricity box and a strong electricity box. The weak electricity box is provided with a weak electricity cavity for installing a weak electricity control board, the strong electricity box is provided with a strong electricity cavity for installing a strong electricity control board, a tray box lower cover is installed at the lower end of the strong electricity cavity, and a tray box upper cover is installed at the upper opening of the strong electricity cavity; both the tray box lower cover and the tray box upper cover are made of heat insulation materials.
[0006] Preferably, installation lugs are provided on the outer peripheries of both the weak electricity box and the strong electricity box.
[0007] Preferably, installation pillars and a cover seat for installing the tray box lower cover are provided at the lower end of the weak electricity box.
[0008] Preferably, a plurality of threaded posts for installing the weak electricity control board are provided at the bottom of the weak electricity cavity, a weak electricity pillar is provided on one side wall of the weak electricity cavity, and a weak electricity buckle is provided on the other side wall of the weak electricity cavity.
[0009] Preferably, a connection groove communicating with the strong electricity cavity is provided on one side of the strong electricity box, and strong electricity clamping posts are provided on the inner side wall of the strong electricity cavity.
[0010] Preferably, a cover body clamping plate for connecting the lower cover of the tray is provided on the outer side wall of the strong power box, a limit clamping plate for installing the upper cover of the tray is provided on one side of the upper end of the strong power box, and a cover body buckle for installing the upper cover of the tray is provided on the other side of the upper end of the strong power box.
[0011] Preferably, the lower cover of the tray includes a lower cover plate, a lower surrounding plate is provided at the upper end edge of the lower cover plate, and a cover body support plate is fixedly provided on one group of the lower surrounding plates.
[0012] Preferably, the upper cover of the tray includes an upper cover body, and a clamping plate matched with the limit clamping plate and the cover body buckle is fixedly provided at the lower end of the outer periphery of the upper cover body.
[0013] Preferably, a heat dissipation component is installed on the upper cover of the tray. The heat dissipation component includes a guiding seat fixedly installed on the upper cover of the tray. A sealing cover plate is slidably connected to the guiding seat, and two groups of heat dissipation through holes are provided on the sealing cover plate; a first through groove and a second through groove corresponding to the two groups of heat dissipation through holes are provided on the upper cover of the tray; a temperature sensor and a smoke sensor are provided on the inner wall of the upper cover of the tray.
[0014] Preferably, a fan is installed on the sealing cover plate. The fan is located at one group of the heat dissipation through holes. A connecting support plate is fixedly provided on the sealing cover plate. A fixing plate is fixedly provided on the guiding seat. An electric rod is fixedly installed on the fixing plate, and the telescopic rod of the electric rod is fixedly connected to the connecting support plate.
[0015] The beneficial effects of the present utility model:
[0016] (1) Separate the strong power and the weak power. After the upper cover of the tray is installed with the control board, it covers the top of the electronic components to form a narrow space, compresses the air, and the iron upper cover of the tray can effectively play a flame retardant effect; the lower cover of the tray wraps the back of the strong power box of the control board, and the iron lower cover of the tray can effectively isolate the fire source.
[0017] (2) The temperature sensor senses the temperature inside the strong power cavity. When it senses that the temperature rises to the first set threshold, control the electric rod to work to drive the sealing cover plate to slide, so that the first through groove and the second through groove are both in a conductive state at the same time, ensuring heat dissipation inside the strong power cavity. When the temperature sensor senses that the temperature rises to the second set threshold, at this time, start the fan to accelerate heat dissipation inside the strong power cavity. When the smoke sensor senses that there is smoke in the strong power cavity, then control the electric rod to work to drive the sealing cover plate to slide, so that the first through groove and the second through groove are both in a blocked state at the same time, and the inside of the strong power cavity is closed to quickly extinguish the flame, and at the same time achieve the effect of isolating the fire source. Description of the Drawings
[0018] The following further describes the present utility model with reference to the drawings.
[0019] Figure 1It is a schematic diagram of the upper-side three-dimensional structure of the whole utility model;
[0020] Figure 2 It is a schematic diagram of the lower-side three-dimensional structure of the whole utility model;
[0021] Figure 3 It is a schematic diagram of the upper-side axonometric structure of the whole utility model;
[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the strong-electricity cavity of the utility model;
[0023] Figure 5 It is a schematic diagram of the axonometric structure of the strong-electricity cavity of the utility model;
[0024] Figure 6 It is a schematic diagram of the second embodiment of the utility model;
[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the upper cover of the tray in the second embodiment of the utility model;
[0026] Figure 8 It is a schematic diagram of the axonometric structure of the upper cover of the tray in the second embodiment of the utility model.
[0027] In the figure: 100, control-board tray; 110, weak-electricity cavity; 111, weak-electricity box; 112, mounting ear; 113, mounting pillar; 114, cover body support; 115, threaded pillar; 116, weak-electricity pillar; 117, weak-electricity buckle; 120, strong-electricity cavity; 121, strong-electricity box; 122, connection groove; 123, strong-electricity clamping post; 124, cover body clamping plate; 125, limit clamping plate; 126, cover body buckle; 200, lower cover of the tray; 21, lower cover plate; 22, lower surrounding plate; 23, cover body support plate; 300, upper cover of the tray; 31, upper cover body; 32, clamping plate; 33, through groove one; 34, through groove two; 400, heat dissipation component; 41, guide seat; 42, sealing cover plate; 43, heat dissipation through hole; 44, temperature sensor; 45, fan; 46, connection support plate; 47, fixing plate; 48, electric rod; 49, smoke sensor. Detailed implementation manners
[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0029] Embodiment 1
[0030] Please refer to Figures 1-5As shown in the figure, the utility model is a control board tray box structure for preventing ignition, including a control board tray box 100. The control board tray box 100 includes a weak current box 111 and a strong current box 121 connected to each other. A weak current cavity 110 for installing a weak current control board is provided on the weak current box 111, and a strong current cavity 120 for installing a strong current control board is provided on the strong current box 121. A lower cover 200 of the tray box is installed at the lower end of the strong current cavity 120, and an upper cover 300 of the tray box is installed at the upper opening of the strong current cavity 120; both the lower cover 200 of the tray box and the upper cover 300 of the tray box are made of heat-insulating materials.
[0031] In an alternative embodiment, mounting lugs 112 are provided on the outer peripheries of both the weak current box 111 and the strong current box 121.
[0032] It should be noted that the provision of the mounting lugs 112 facilitates the fixed installation of the control board tray box 100 in the washing machine, ensuring the stability of the installation of the control board tray box 100.
[0033] In an alternative embodiment, mounting posts 113 and a cover support 114 for installing the lower cover 200 of the tray box are provided at the lower end of the weak current box 111.
[0034] It should be noted that the provision of the mounting posts 113 plays a supporting role in the installation of the control board tray box 100, ensuring that the installation heights of the strong current box 121 and the weak current box 111 are the same, and the provision of the cover support 114 ensures the stable installation of the lower cover 200 of the tray box.
[0035] In an alternative embodiment, a plurality of threaded posts 115 for installing a weak current control board are provided at the bottom of the weak current cavity 110, a weak current support 116 is provided on one side wall of the weak current cavity 110, and a weak current buckle 117 is provided on the other side wall of the weak current cavity 110.
[0036] It should be noted that the threaded posts 115 are provided to install the weak current control board, the weak current support 116 supports the installation of the weak current control board, and the weak current buckle 117 clamps the installation of the weak current control board, ensuring stable installation.
[0037] In an alternative embodiment, a connection groove 122 communicating with the strong current cavity 120 is provided on one side of the strong current box 121, and strong current clamping posts 123 are provided on the inner side wall of the strong current cavity 120.
[0038] It should be noted that the provision of the connection groove 122 facilitates the connection of wires, and the provision of the strong current clamping posts 123 improves the stability of the installation of the strong current control board.
[0039] In an alternative embodiment, a cover body clamping plate 124 for connecting the lower cover 200 of the tray is provided on the outer side wall of the power distribution box 121. A limit clamping plate 125 for installing the upper cover 300 of the tray is provided on one side of the upper end of the power distribution box 121, and a cover body buckle 126 for installing the upper cover 300 of the tray is provided on the other side of the upper end of the power distribution box 121.
[0040] It should be noted that the lower surrounding plate 22 is limited by the cover body clamping plate 124 to improve the stability of the installation of the lower cover 200 of the tray. The limit clamping plate 125 limits one side of the installation of the upper cover 300 of the tray, and the cover body buckle 126 limits the installation of the other side of the upper cover 300 of the tray to ensure the stability of the installation of the upper cover 300 of the tray.
[0041] In an alternative embodiment, the lower cover 200 of the tray includes a lower cover plate 21. A lower surrounding plate 22 is provided at the upper edge of the lower cover plate 21, and a cover body support plate 23 is fixedly provided on one group of the lower surrounding plates 22.
[0042] It should be noted that the lower surrounding plate 22 is inserted into the cover body clamping plate 124, and the lower surrounding plate 22 is limited by the cover body clamping plate 124. The cover body support plate 23 is installed on the cover body support seat 114 through bolts to realize the fixed installation of the lower cover 200 of the tray.
[0043] In an alternative embodiment, the upper cover 300 of the tray includes an upper cover body 31, and a clamping plate 32 matched with the limit clamping plate 125 and the cover body buckle 126 is fixedly provided at the lower end of the outer periphery of the upper cover body 31.
[0044] After the upper cover 300 of the tray is installed with the control board, it covers the top of the electronic components to form a narrow space to compress air, and the iron upper cover 300 of the tray can effectively play a flame retardant effect; the lower cover 200 of the tray wraps the back of the power distribution box 121 of the control board, and the iron lower cover 200 of the tray can effectively isolate the fire source.
[0045] Embodiment Two
[0046] On the basis of Embodiment One, a heat dissipation component 400 is provided to dissipate heat from the inside of the power distribution cavity 120, and at the same time, the inside of the power distribution cavity 120 is closed when a fire source appears, effectively playing a flame retardant effect.
[0047] A heat dissipation component 400 is installed on the upper cover 300 of the tray. The heat dissipation component 400 includes a guide seat 41 fixedly installed on the upper cover 300 of the tray. A sealing cover plate 42 is slidably connected to the guide seat 41, and two groups of heat dissipation through holes 43 are provided on the sealing cover plate 42; a first through groove 33 and a second through groove 34 corresponding to the two groups of heat dissipation through holes 43 are provided on the upper cover 300 of the tray; a temperature sensor 44 and a smoke sensor 49 are provided on the inner wall of the upper cover 300 of the tray.
[0048] A fan 45 is installed on the sealing cover plate 42. The fan 45 is located at one group of heat dissipation through holes 43. A connecting support plate 46 is fixedly arranged on the sealing cover plate 42. A fixing plate 47 is fixedly arranged on the guiding seat 41. An electric rod 48 is fixedly installed on the fixing plate 47. The telescopic rod of the electric rod 48 is fixedly connected to the connecting support plate 46.
[0049] Specifically, the sizes of the two groups of heat dissipation through holes 43 are larger than the sizes of the first through groove 33 and the second through groove 34, and the distance between the two groups of heat dissipation through holes 43 is larger than the width of the heat dissipation through holes 43, ensuring that the first through groove 33 and the second through groove 34 are both in a conducting state or both in a blocking state at the same time.
[0050] It should be noted that the temperature inside the high-voltage cavity 120 is sensed by the temperature sensor 44. When the sensed temperature rises to the first set threshold value, the electric rod 48 is controlled to work to drive the sealing cover plate 42 to slide, so that the first through groove 33 and the second through groove 34 are both in a conducting state at the same time, ensuring heat dissipation inside the high-voltage cavity 120. When the temperature sensor 44 senses that the temperature rises to the second set threshold value, the fan 45 is started at this time to accelerate heat dissipation inside the high-voltage cavity 120. When the smoke sensor 49 senses that there is smoke in the high-voltage cavity 120, the electric rod 48 is controlled to work to drive the sealing cover plate 42 to slide, so that the first through groove 33 and the second through groove 34 are both in a blocking state at the same time. The inside of the high-voltage cavity 120 is closed to quickly extinguish the flame, and at the same time, the function of isolating the fire source is achieved.
[0051] The above has described a specific embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. Any equal changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.
Claims
1. A control panel support box structure for preventing ignition, characterized in that, It includes a control board support box (100), on which there is a connected weak electricity box (111) and a strong electricity box (121). On the weak electricity box (111), there is a weak electricity cavity (110) for installing a weak electricity control board. On the strong electricity box (121), there is a strong electricity cavity (120) for installing a strong electricity control board. At the lower end of the strong electricity cavity (120), a lower cover (200) of the support box is installed, and at the upper opening of the strong electricity cavity (120), an upper cover (300) of the support box is installed; both the lower cover (200) and the upper cover (300) of the support box are made of heat-insulating materials.
2. The control board support box structure for avoiding ignition according to claim 1, characterized in that, Installation lugs (112) are arranged on the outer peripheries of both the weak electricity box (111) and the strong electricity box (121).
3. The control board support box structure for preventing ignition according to claim 1, characterized in that, At the lower end of the weak electricity box (111), there are installation pillars (113) and a cover seat (114) for installing the lower cover (200) of the support box.
4. A control board support box structure for preventing ignition, characterized in that On the bottom of the weak electricity cavity (110), there are several threaded posts (115) for installing a weak electricity control board. On one side wall of the weak electricity cavity (110), there is a weak electricity pillar (116), and on the other side wall of the weak electricity cavity (110), there is a weak electricity buckle (117).
5. The structure of the control board tray for preventing ignition according to claim 1, characterized in that, On one side of the strong electricity box (121), there is a connection groove (122) communicating with the strong electricity cavity (120), and on the inner side wall of the strong electricity cavity (120), there is a strong electricity clamping post (123).
6. The structure of the control board tray for preventing ignition according to claim 1, characterized in that, On the outer side wall of the strong electricity box (121), there is a cover clamping plate (124) for connecting the lower cover (200) of the support box. On one side of the upper end of the strong electricity box (121), there is a limit clamping plate (125) for installing the upper cover (300) of the support box, and on the other side of the upper end of the strong electricity box (121), there is a cover buckle (126) for installing the upper cover (300) of the support box.
7. The structure of the control board support box for preventing ignition according to claim 6, characterized in that, The lower cover (200) of the support box includes a lower cover plate (21), and at the upper edge of the lower cover plate (21), there is a lower surrounding plate (22). On one group of the lower surrounding plates (22), there is a fixedly arranged cover support plate (23).
8. A control board tray structure for preventing ignition, characterized in that The upper cover (300) of the support box includes an upper cover body (31), and at the lower end of the outer periphery of the upper cover body (31), there is a clamping plate (32) matching with the limit clamping plate (125) and the cover buckle (126).
9. A control board tray structure for preventing ignition, according to any one of claims 1-8, characterized in that A heat dissipation component (400) is installed on the upper cover (300) of the support box. The heat dissipation component (400) includes a guide seat (41) fixedly installed on the upper cover (300) of the support box. A sealing cover plate (42) is slidably connected to the guide seat (41), and two groups of heat dissipation through holes (43) are arranged on the sealing cover plate (42); on the upper cover (300) of the support box, there are a first through groove (33) and a second through groove (34) corresponding to the two groups of heat dissipation through holes (43); on the inner wall of the upper cover (300) of the support box, there are a temperature sensor (44) and a smoke sensor (49).
10. A control board support box structure for preventing ignition, characterized in that A fan (45) is installed on the sealing cover plate (42). The fan (45) is located at one group of heat dissipation through holes (43). A connecting support plate (46) is fixedly arranged on the sealing cover plate (42). A fixing plate (47) is fixedly arranged on the guiding seat (41). An electric rod (48) is fixedly installed on the fixing plate (47). The telescopic rod of the electric rod (48) is fixedly connected to the connecting support plate (46).