Interaction device and vehicle-mounted power supply

Abstract

The utility model discloses an interaction device and a vehicle-mounted power supply, the interaction device is in communication connection with power supply equipment, the interaction device comprises a shell base, and the shell base comprises a cavity with an opening at one end; the control mainboard is fixed in the cavity and is parallel to the opening, and a heat conduction silica gel layer is arranged on the upper end face, close to the opening, of the control mainboard; the liquid crystal panel is fixed to the control mainboard and located at the opening, a heating film is fixed to the back face, facing the control mainboard, of the liquid crystal panel, and the heating film and the liquid crystal panel are both electrically connected with the control mainboard. The interaction device can display the working state of the power supply equipment, and is good in shock resistance and low temperature resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle power supplies, and particularly relates to an interaction device and a vehicle power supply. Background Art

[0002] At present, when vehicle power supplies such as inverter power supplies, chargers, DC voltage converters and other devices are working, only the body indicator lights show the working state. When the vehicle power supply is used in a vehicle, the operation state of the device cannot be viewed in real time. Even if some vehicle power supplies are added with an interaction device to display the working state on the display panel of the interaction device, for some special vehicles that need to work in a low-temperature environment, the display panel of this interaction device cannot work in a low-temperature environment and has poor seismic resistance and cannot be applied to the working environment. Content of the Utility Model

[0003] In order to overcome the above-mentioned drawbacks, the purpose of the utility model is to provide an interaction device and a vehicle power supply, which can display the working state of the power supply device and have good seismic resistance and low-temperature resistance.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: an interaction device, which is communicatively connected to a power supply device, and the interaction device includes:

[0005] A housing base, the housing base includes a cavity with an opening at one end;

[0006] A control main board, the control main board is fixed in the cavity and parallel to the opening, and a thermal conductive silicone layer is arranged on the upper end surface of the control main board close to the opening;

[0007] A liquid crystal panel, the liquid crystal panel is fixed to the control main board and is located at the opening, a heating film is fixed on the back surface of the liquid crystal panel facing the control main board, and both the heating film and the liquid crystal panel are electrically connected to the control main board.

[0008] The beneficial effect of the utility model is that the interaction device has a compact structure, and the working state of the power supply device can be displayed through a liquid crystal panel. The added thermal conductive silicone layer on the control main board plays an insulating role on the one hand and a shock-absorbing role on the liquid crystal panel on the other hand. At the same time, the added heating film heats the liquid crystal panel, solving the problem of use in low temperature. The whole interaction device can be applied to vehicles running in a low-temperature environment.

[0009] Furthermore, a fixed backboard is arranged between the heating film and the control main board, and the fixed backboard is detachably connected to the liquid crystal panel. The fixed backboard supports the liquid crystal panel and improves the strength of the support panel.

[0010] Furthermore, a temperature sensor is fixed on the liquid crystal panel, and the temperature sensor is electrically connected to the control main board. The temperature sensor is used to collect the temperature of the liquid crystal panel in real time. When the temperature of the liquid crystal panel is lower than the set threshold, the control main board drives the heating film to heat up.

[0011] Furthermore, the interaction device further includes a housing fixing card board, the housing fixing card board covers the opening and is detachably connected to the housing base, and a window matching the liquid crystal panel is provided on the housing fixing card board.

[0012] Furthermore, a plurality of metal buckles are fixed on the housing fixing card board, and a convex edge extending outward away from the cavity is provided at the opening of the housing base, and the metal buckles are clamped at the convex edge. The metal buckles use their own elasticity to be clamped with the convex edge to achieve rapid disassembly.

[0013] Furthermore, the metal buckle includes a connecting portion, an elastic arm portion and a clamping block portion. The connecting portion is fixedly connected to the housing fixing card board and abuts against the upper surface of the convex edge. The elastic arm is located at the end of the connecting portion, and the clamping block portion is fixed to the inner side of the lower end of the elastic arm and abuts against the lower surface of the convex edge.

[0014] Furthermore, a plurality of nut seats are fixed at the bottom of the cavity, and the control main board is fixedly connected to the housing base through screws locked in the nut seats.

[0015] The present utility model also discloses a vehicle-mounted power supply, which includes the above-mentioned interaction device and a power supply device, and the control main board is wirelessly or wiredly communicatively connected to the power supply device. Description of the Drawings

[0016] Figure 1 is an exploded view of the interaction device in the embodiment of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the interaction device in the embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of the clamping state of the metal buckle and the convex edge in the embodiment of the present utility model;

[0019] Figure 4 is a system block diagram of the control main board in the embodiment of the present utility model;

[0020] Figure 5 is a circuit diagram of the heating drive circuit in the embodiment of the present utility model.

[0021] In the figure:

[0022] 1. Housing base; 11. Cavity; 12. Convex edge;

[0023] 2. Control main board; 21. Control chip; 22. Heating drive circuit;

[0024] 3. Liquid crystal panel;

[0025] 4. Heating film;

[0026] 5. Fixed backplane;

[0027] 6. Temperature sensor;

[0028] 7. Housing fixing card board; 71. Dry metal buckle; 711. Connection part; 712. Elastic arm part; 713. Block part. Specific implementation mode

[0029] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0030] Embodiment

[0031] Refer to the attached Figure 1 and the attached Figure 2 As shown, an interaction device of the present utility model is used to display the real-time working state of a power supply device. The interaction device includes a housing base 1, a control main board 2, and a liquid crystal panel 3 that are fixedly connected.

[0032] The housing base 1 includes a cavity 11 with an opening at one end, and the cavity 11 is used for placing the control main board 2 and the liquid crystal panel 3.

[0033] The control main board 2 is fixed in the cavity 11 and is parallel to the opening. At this time, the space occupied by the control main board 2 is small, and it is a square with the same shape as the cavity 11. A heat-conducting silica gel layer is provided on the upper end surface of the control main board 2 close to the opening. During processing, a layer of heat-conducting silica gel is applied to the control main board 2 to form a heat-conducting silica gel layer covering the side surface of the control main board 2. The heat-conducting silica gel has excellent resistance to thermal cycling, aging resistance, and electrical insulation properties, and has excellent moisture-proof, shock-resistant, corona-resistant, anti-leakage, and chemical medium resistance properties, which can effectively protect the liquid crystal panel 3 located above it. The heat-conducting silica gel layer plays an insulating role on the one hand and a shock-absorbing role on the liquid crystal panel 3 on the other hand.

[0034] The liquid crystal panel 3 is fixed to the control main board 2 and is located at the opening. A heating film 4 is fixed to the back surface of the liquid crystal panel 3 facing the control main board. Both the heating film 4 and the liquid crystal panel are electrically connected to the control main board 2. The information of the power supply device collected by the control main board 2 is displayed on the liquid crystal panel 3. The heating film 4 is adhered to the back surface of the liquid crystal panel 3 and can heat the liquid crystal panel 3. At the same time, the heating film 4 is electrically connected to the control main board 2, and the control main board 2 controls and supplies power to the heating film 4. Since the general working limit temperature of the liquid crystal panel 3 is -30°C, when the interactive device is used in an environment below the limit temperature, the liquid crystal panel 3 can be heated by the heating film 4, solving the problem of use at low temperatures.

[0035] In this embodiment, the interactive device has a compact structure, and the working state of the power supply device can be displayed through a liquid crystal panel 3. The thermally conductive silicone layer added on the control main board 2 plays an insulating role on the one hand and a shock-absorbing role on the liquid crystal panel 3 on the other hand. At the same time, the added heating film 4 heats the liquid crystal panel 3, solving the problem of use at low temperatures. The entire interactive device can be applied to vehicles traveling in low-temperature environments.

[0036] See the appendix Figure 1 As shown, a fixed backplane 5 is provided between the heating film 4 and the control main board 2, and the fixed backplane 5 is detachably connected to the liquid crystal panel 3. The fixed backplane 5 supports the liquid crystal panel 3 and improves the strength of the support panel.

[0037] The liquid crystal panel 3 is snap-connected to the fixed backplane 5 through the buckle on its own frame, and then the fixed panel is fixed to the control main board 2 by screws. At this time, the control main board 2 and the liquid crystal panel 3 are fixed into an integral interface, and then this integral structure is fixed in the cavity 11. Then this integral structure is fixed in the cavity 11.

[0038] A plurality of nut seats are fixed to the bottom of the cavity 11, and the control main board 2 is fixedly connected to the housing base 1 through screws locked in the nut seats. The nut seats play a role in supporting the control main board 2 on the one hand and are used for threaded connection with the screws on the other hand.

[0039] A temperature sensor 6 is also fixed on the liquid crystal panel 3, and the temperature sensor 6 is electrically connected to the control main board 2. The temperature sensor 6 is used to collect the temperature of the liquid crystal panel 3 in real time. When the temperature of the liquid crystal panel 3 is lower than the set threshold, the control main board 2 drives the heating film 4 to heat.

[0040] See the appendix Figure 4 As shown, the control main board 2 includes a control chip 21 and a heating drive circuit 22. The temperature sensor 6 is connected to the input end of the control chip 21, and the output end of the control chip 21 is connected to the heating drive circuit 22. The heating drive circuit 22 is used to drive the heating film 4 to heat.

[0041] Appended Figure 5 Figure 5 shows the heating drive circuit 22. As shown in the appended drawings, the interface JR is connected to the output terminal of the control chip 21. After the signal output by the control chip 21 passes through the MOS transistors Q2 and Q4, the on / off of the heating film 4 is controlled to control the start and stop of heating.

[0042] See the appended Figure 1 As shown, the interaction device further includes a housing fixing card board 7. The housing fixing card board 7 covers the opening and is detachably connected to the housing base 1. A window matching the liquid crystal panel 3 is provided on the housing fixing card board 7. The detachable connection between the housing fixing card board 7 and the housing base 1 facilitates the quick disassembly of the two, which is convenient for maintenance and assembly.

[0043] See the appended Figure 3 As shown, a plurality of metal buckles 71 are fixed on the housing fixing card board 7. The housing base 1 is provided with a convex edge 12 extending outward away from the cavity 11 at the opening. The metal buckle is snapped at the convex edge 12. The metal buckle uses its own elasticity to snap with the convex edge 12. In this embodiment, the housing fixing card board 7 is square, and the metal buckles are fixed at the four corners of the housing fixing card board 7.

[0044] See the appended Figure 3 As shown, the metal buckle includes a connecting portion 711, a spring arm portion 712, and a locking block portion 713. The connecting portion 711 is fixedly connected to the housing fixing card board 7 and abuts against the upper surface of the convex edge 12. The spring arm is located at the end of the connecting portion 711. The locking block portion 713 is fixed to the inner side of the lower end of the spring arm and abuts against the lower surface of the convex edge 12. Apply an external force to the spring arm to swing the spring arm outward. At this time, the locking block portion 713 disengages from the convex edge 12, and the metal buckle and the convex edge 12 are disengaged from the snap connection; when an external force is applied, the spring arm returns to its original position under its own elastic force, and the convex edge 12 is limited between the connecting portion 711 and the locking block portion 713, and the metal buckle and the convex edge 12 are snap-connected.

[0045] In one embodiment, a vehicle-mounted power supply is also disclosed, which includes the above-mentioned interaction device and a power supply device. The control main board and the power supply device are wirelessly connected or wiredly connected for communication. At this time, the vehicle-mounted power supply can display the working state on the liquid crystal panel 3 in real time, which is convenient for the operator to view.

[0046] The above embodiments are only for explaining the technical concept and features of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An interaction device is communicatively connected to a power supply device, characterized in that: The interactive device includes: A housing base, the housing base includes a cavity with an opening at one end; A control main board, the control main board is fixed in the cavity and parallel to the opening, and a heat-conducting silica gel layer is provided on the upper end surface of the control main board close to the opening; A liquid crystal panel, the liquid crystal panel is fixed to the control main board and located at the opening, a heating film is fixed on the back surface of the liquid crystal panel facing the control main board, and both the heating film and the liquid crystal panel are electrically connected to the control main board.

2. The interactive device according to claim 1, wherein: A fixed back plate is provided between the heating film and the control main board, and the fixed back plate is detachably connected to the liquid crystal panel.

3. The interactive device according to claim 1, characterized in that: A temperature sensor is also fixed on the liquid crystal panel, and the temperature sensor is electrically connected to the control main board.

4. The interactive device according to any one of claims 1-3, characterized in that: The interactive device further includes a housing fixing card board, the housing fixing card board covers the opening and is detachably connected to the housing base, and a window matching the liquid crystal panel is provided on the housing fixing card board.

5. The interactive device according to claim 4, characterized in that: A plurality of metal buckles are fixed on the housing fixing card board, and the housing base is provided with a convex edge extending outward away from the cavity at the opening, and the metal buckles are clamped at the convex edge.

6. The interactive device according to claim 5, wherein: The metal buckle includes a connecting portion, a spring arm portion and a clamping block portion. The connecting portion is fixedly connected to the housing fixing card board and abuts against the upper surface of the convex edge. The spring arm is located at the end of the connecting portion. The clamping block portion is fixed to the inner side of the lower end of the spring arm and abuts against the lower surface of the convex edge.

7. The interactive device according to claim 1, wherein: A plurality of nut seats are fixed at the bottom of the cavity, and the control main board is fixedly connected to the housing base through screws locked in the nut seats.

8. A vehicle-mounted power supply, characterized in that: It includes the interactive device according to any one of claims 1-7 and a power supply device, and the control main board is wirelessly or wiredly communicatively connected to the power supply device.

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