CN219779811U - Charger (charger) - Google Patents
Charger (charger) Download PDFInfo
- Publication number
- CN219779811U CN219779811U CN202320620850.6U CN202320620850U CN219779811U CN 219779811 U CN219779811 U CN 219779811U CN 202320620850 U CN202320620850 U CN 202320620850U CN 219779811 U CN219779811 U CN 219779811U
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- CN
- China
- Prior art keywords
- heat
- charger
- circuit board
- shell
- heating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 56
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 230000004888 barrier function Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 6
- 208000033999 Device damage Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a charger, which comprises a shell, wherein a plurality of radiating holes are formed in the bottom wall of the shell, and penetrate through the bottom wall; the circuit board is arranged in the shell and comprises a board body, and a first heating device and a second heating device which are arranged on the board body at intervals, wherein the heating value of the first heating device under the maximum power is larger than that of the second heating device under the maximum power; the heat conduction layer is arranged in the shell, is positioned between the circuit board and the bottom wall, and at least covers the first heat-generating device through orthographic projection of the heat conduction layer, and is communicated with the outside of the shell through the heat dissipation holes. According to the utility model, the devices generating high temperature and the devices generating low temperature of the circuit board are arranged at intervals, when the charger operates, the temperature emitted by the devices generating high temperature is not transmitted to the devices generating low temperature, the high temperature is prevented from influencing the operation of the devices generating low temperature, the heat of the devices generating high temperature is led out through the heat conducting layer and is emitted out of the shell through the heat radiating holes, so that the temperature of the circuit board is reduced, and the handle is rapidly charged.
Description
Technical Field
The utility model relates to a charger, and belongs to the technical field of charging equipment.
Background
The electric medical instrument handle is a surgical tool commonly used in surgical operations, and the electric medical instrument handle only has a charging time of half an hour to one hour in the process of connecting a table in operation, so that the charger is required to realize a quick charging function so as to be convenient for carrying out the operation of connecting the table.
However, according to the battery model that electric medical instrument handle selected was used, under the condition of 8.4V of voltage, if carry out quick charge to the battery of electric medical instrument handle, charging current also can correspondingly increase, leads to the chip temperature on the mainboard that charges of charger to be high, if the chip temperature can not get in time to dissipate, on the high temperature that the chip produced was transmitted other low temperature devices, can lead to the low temperature device to influence, even lead to low temperature device damage, still can trigger the overtemperature protect function of charger simultaneously to make the charger stop working, lead to charging failure, influence follow-up operation and go on.
Disclosure of Invention
The utility model aims to provide a charger which can timely radiate heat and cool a high-temperature device when an electric medical instrument handle is charged quickly so as to avoid the influence of the high-temperature device on a low-temperature device and avoid the charge failure caused by triggering an over-temperature protection function.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a charger, comprising:
the shell, be provided with a plurality of louvres on the diapire of said shell, the said louvre runs through the said diapire;
the circuit board is arranged in the shell and comprises a board body, and a first heating device and a second heating device which are arranged on the board body at intervals, wherein the heating value of the first heating device under the maximum power is larger than that of the second heating device under the maximum power; and
the heat conduction layer is arranged in the shell, the heat conduction layer is positioned between the circuit board and the bottom wall, the orthographic projection of the heat conduction layer at least covers the first heating device, and the heat conduction layer is communicated with the outside of the shell through the heat dissipation hole.
Further, the circuit board is provided with a first area for installing the first heating device and a second area for installing the second heating device, the first area is not overlapped with the second area, and the orthographic projection of the heat conducting layer at least covers the first area.
Further, the bottom of the shell is also provided with heat insulation support legs for contacting with the placement surface, so that a heat dissipation space is formed between the bottom wall and the placement surface.
Further, the thermally insulating feet are disposed adjacent to the edge of the bottom wall.
Further, at least one vent hole is arranged on the heat insulation support leg, and the vent hole is suitable for conducting out heat in the heat dissipation space.
Further, the number of the heat insulation supporting legs is at least two, at least two heat insulation supporting legs are arranged at intervals to form a heat dissipation channel, and the heat dissipation channel is suitable for conducting out heat in the heat dissipation space.
Further, the number of heat dissipation holes covered by the orthographic projection of the first area is larger than the number of heat dissipation holes covered by the orthographic projection of the second area.
Further, a plurality of heat insulation ribs are further arranged on the inner side of the bottom wall, a plurality of heat insulation ribs, the bottom wall and the heat conduction layer enclose to form a plurality of heat dissipation cavities, each heat dissipation cavity is communicated with at least one heat dissipation hole, and the heat dissipation holes are suitable for guiding heat corresponding to the heat dissipation cavities to the outside of the shell.
Further, the projection shape of the heat insulation rib on the circuit board is any one or a combination of a plurality of linear, curved and folded shapes.
Further, the projection shape of the heat dissipation cavity on the circuit board is any one or a combination of a plurality of U-shaped, quadrilateral, round and oval shapes.
The utility model has the beneficial effects that: according to the utility model, the first heating device generating high temperature and the second heating device generating low temperature during working on the circuit board are arranged at intervals, so that the temperature emitted by the first heating device is not transferred to the second heating device during operation of the charger, and the temperature emitted by the first heating device is prevented from influencing the operation of the second heating device. Meanwhile, a heat conducting layer which at least covers the first heating device is arranged between the circuit board and the bottom wall of the shell, a heat radiating hole is formed in the bottom wall, heat generated by the first heating device is led out through the heat conducting layer and radiated to the outside of the shell through the heat radiating hole, so that the first heating device is rapidly cooled, the temperature of the circuit board is reduced, the circuit board is prevented from being overtemperature protection and is stopped, and the handle is rapidly charged.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.
Drawings
FIG. 1 is a schematic cross-sectional view of a charger according to an embodiment of the present utility model;
fig. 2 is a schematic bottom view of the charger shown in fig. 1.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The electric medical instrument handle is a surgical tool commonly used in surgical operations, and the electric medical instrument handle only has a charging time of half an hour to one hour in the process of connecting a table in operation, so that the charger is required to realize a quick charging function so as to be convenient for carrying out the operation of connecting the table. However, according to the battery model that electric medical instrument handle selected was used, under the condition of 8.4V of voltage, if carry out quick charge to the battery of electric medical instrument handle, charging current also can correspondingly increase, leads to the chip temperature on the mainboard that charges of charger to be high, if the chip temperature can not get in time to dissipate, on the high temperature that the chip produced was transmitted other low temperature devices, can lead to the low temperature device to influence, even lead to low temperature device damage, still can trigger the overtemperature protect function of charger simultaneously to make the charger stop working, lead to charging failure, influence follow-up operation and go on.
Therefore, the utility model provides the charger for charging the electric medical instrument handle, and the charger can timely radiate heat and cool the device generating high temperature when the electric medical instrument handle is charged quickly, so as to avoid the influence of the high temperature on the device generating low temperature and avoid triggering the over-temperature protection function of the charger to cause charging failure. The charger has an over-temperature protection function which is conventionally set, and the implementation manner and principle of the charger are not described in detail herein. The electric medical instrument handle may be a handle of a stapler for cutting or suturing an intestine, a stomach, or other tissues or the like inside a human body, or a handle of a clip applier for cutting off and clipping a capillary channel inside a human body in a laparoscopic surgery, and the charger may charge only one electric medical instrument handle, or may charge different kinds of electric medical instrument handles. The type of the electric medical surgical instrument handle which can be matched with the charger and the type and the number of the electric medical surgical instruments which can be matched with each charger are not particularly limited, and can be adjusted according to design requirements.
Referring to fig. 1 and 2, a charger according to an embodiment of the utility model includes a housing 1, a circuit board 2 mounted in the housing 1, and a heat conductive layer 3. The heat-conducting layer 3 serves to conduct away the heat on the circuit board 2. The housing 1 may have a hollow structure, and an accommodating space 4 is provided inside the housing, and the circuit board 2 and the heat conducting layer 3 are located in the accommodating space 4. In order to conduct heat in the housing 1 to the outside of the housing 1, a plurality of heat dissipation holes 5 are provided in the bottom wall 11 of the housing 1, and the heat dissipation holes 5 penetrate through the bottom wall 11 to communicate with the accommodation space 4 in the housing 1. Indeed, in other embodiments, the side walls and top wall of the housing 1 may also be provided with heat dissipation holes 5. The heat dissipation holes 5 may be circular, rectangular, triangular, oval, or the like. The casing 1 may be rectangular or cylindrical, and the shape of the casing 1 and the heat dissipation holes 5 and the arrangement positions of the heat dissipation holes 5 are not particularly limited, and may be adjusted in accordance with design requirements.
The circuit board 2 includes a board body, and first heat generating devices (not shown) and second heat generating devices (not shown) arranged on the board body (not shown) at intervals, and the heat generation amount of the first heat generating devices at the maximum power is larger than the heat generation amount of the second heat generating devices at the maximum power. The first heating device may include a charging control chip or a high-power triode or a resistor, and the second heating device may include a capacitor or a diode, which are all conventionally arranged, and are not described herein. The first heating device and the second heating device are arranged at intervals, so that high temperature generated by the first heating device during operation can be avoided, the high temperature is transmitted to the second heating device which generates low temperature during operation nearby, the influence of the high temperature on the normal operation of the second power device is avoided, the second power device is even damaged at high temperature, and the normal operation of the circuit board 2 is further ensured, so that the medical surgical instrument handle is quickly charged.
In this embodiment, the circuit board 2 has a first region for mounting the first heat generating device and a second region for mounting the second heat generating device, and the first region and the second region do not overlap. So as to space the first heat generating device from the second heat generating device. Meanwhile, the first region is used for mounting the first heat generating device generating high temperature, so that the number of heat dissipation holes 5 covered by the front projection of the first region is larger than the number of heat dissipation holes 5 covered by the front projection of the second region. To further improve the heat dissipation efficiency of the first heat generating device.
In order to dissipate the heat emitted by the first heat-generating device in time, the heat-conducting layer 3 is located between the circuit board 2 and the bottom wall 11, and the orthographic projection of the heat-conducting layer 3 at least covers the first heat-generating device, and the heat-conducting layer 3 is communicated with the outside of the casing 1 through the heat-dissipating holes 5. When the charger operates, the first heating device emits high temperature, the heat conducting layer 3 distributes the high Wen Daochu out of the shell 1 in time through the heat radiating holes 5, and the high temperature generated by the first heating device is prevented from being transmitted to the second heating device so as to influence the second heating device. Taking this embodiment as an example, the orthographic projection of the heat conducting layer 3 covers at least the first area.
Indeed, in other embodiments, the heat conducting layer 3 may also cover the lower surface of the circuit board 2, and may conduct heat from both the first heat generating device and the second heat generating device. The heat conducting layer 3 may be an integral heat conducting pad, which is laid between the circuit board 2 and the housing 1, or the heat conducting layer 3 may be two separate heat conducting pads, which are respectively laid at the first area and the second area corresponding to the circuit board 2, or the heat conducting layer 3 may be coated on the surface of the first heat generating device, which is not limited in the present utility model. Can be adjusted according to design requirements.
In this embodiment, the heat conducting layer 3 is specifically a silica gel pad laid between the circuit board 2 and the bottom wall 11, which is low in cost and convenient to install. The silica gel is a heat conducting material with low thermal resistance, high heat conducting performance and high flexibility, and the material has high flexibility, so that the pressure required between the first heating device and the second heating device on the circuit board 2 can be reduced, and the surface with micro unevenness is covered to be fully contacted with the first heating device and the second heating device, thereby improving the heat conducting efficiency and further improving the heat radiating effect on the circuit board 2.
In this way, since the heat dissipation holes 5 are formed in the bottom wall 11 of the housing 1, and the circuit board 2 and the heat conducting layer 3 are in direct or indirect contact with the bottom wall 11 of the housing 1, in order to avoid the heat dissipation effect caused by the heat dissipation of the charger when the charger is placed on the placement surface for use, the placement surface blocks the heat dissipation holes 5. In this embodiment, the bottom of the housing 1 is further provided with heat insulation legs 6 for contacting the placement surface, so that a heat dissipation space 10 is formed between the bottom wall 11 and the placement surface. In use, the heat dissipation holes 5 can conduct heat from the heat conducting layer 3 to the heat dissipation space 10.
The heat insulation support 6 is arranged near the edge of the bottom wall 11, namely near the edge of the circuit board 2, so that the heat insulation support 6 is prevented from influencing the arrangement position of the heat dissipation holes 5 on the bottom wall 11, the heat dissipation effect is ensured, dust in the outside air can be prevented from adhering to the heat dissipation holes 5 along with the airflow, and the heat dissipation holes 5 are prevented from being blocked by the dust. In this embodiment, the heat insulation leg 6 is provided with at least one ventilation hole 7, and the ventilation hole 7 is adapted to conduct out heat in the heat dissipation space 10.
In another alternative embodiment, the number of the heat insulation legs 6 is at least two, and the at least two heat insulation legs 6 are spaced apart to form a heat dissipation channel (not shown) adapted to conduct heat out of the heat dissipation space 10.
It should be noted that the structure of the heat insulation support 6 is not limited to the above two structures, and may be adjusted according to design requirements, for example, the heat insulation support 6 is a supporting cylinder with a grid structure disposed at the bottom of the housing 1. This is not an example.
In order to improve the heat exchange effect between the air outside the housing 1 and the heat conducting layer 3, in this embodiment, a plurality of heat insulation ribs 8 are further disposed on the inner side of the bottom wall 11, a plurality of heat dissipation cavities (not shown) are formed by surrounding the heat insulation ribs 8, the bottom wall 11 and the heat conducting layer 3, each heat dissipation cavity is communicated with at least one heat dissipation hole 5, and the heat dissipation holes 5 are adapted to guide the heat in the corresponding heat dissipation cavity to the outside of the housing 1. When the heat dissipation device is used, the heat dissipation cavity is communicated with the outside of the shell 1 through the heat dissipation holes 5, so that the contact area between the heat conduction layer 3 and external air is increased, and air flows in the heat dissipation cavity to take away heat on the heat conduction layer 3, so that the heat dissipation effect is accelerated.
The projected shape of the heat insulating rib 8 on the circuit board 2 is any one or a combination of a plurality of linear, curved and folded shapes. The projection shape of the heat dissipation cavity on the circuit board 2 is any one or a combination of a plurality of U-shaped, quadrilateral, round and elliptic shapes. The shapes of the heat insulation ribs 8 and the heat dissipation cavity are not particularly limited, and the arrangement positions of the first power device and the second power device on the circuit board 2 and the shape of the shell 1 can be combined to adjust, for example, circular heat dissipation cavities are respectively formed by surrounding the curved heat insulation ribs 8 at the corresponding positions of the first area and the second area, so that the contact area between the heat dissipation cavity and the heat conduction layer 3 is increased, and the heat exchange effect is improved, which is not exemplified herein.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A charger, comprising:
the shell, be provided with a plurality of louvres on the diapire of said shell, the said louvre runs through the said diapire;
the circuit board is arranged in the shell and comprises a board body, and a first heating device and a second heating device which are arranged on the board body at intervals, wherein the heating value of the first heating device under the maximum power is larger than that of the second heating device under the maximum power; and
the heat conduction layer is arranged in the shell, the heat conduction layer is positioned between the circuit board and the bottom wall, the orthographic projection of the heat conduction layer at least covers the first heating device, and the heat conduction layer is communicated with the outside of the shell through the heat dissipation hole.
2. The charger of claim 1 wherein said circuit board has a first region for mounting said first heat generating device and a second region for mounting said second heat generating device, said first region being non-overlapping with said second region, and wherein an orthographic projection of said thermally conductive layer covers at least said first region.
3. The charger of claim 1 or 2 wherein the bottom of the housing is further provided with thermally insulating feet for contacting the mounting surface such that a heat dissipating space is formed between the bottom wall and the mounting surface.
4. A charger according to claim 3, wherein said thermally insulating feet are disposed adjacent an edge of said bottom wall.
5. The charger of claim 4 wherein said thermally insulated leg is provided with at least one vent adapted to conduct heat away from said heat dissipating space.
6. The charger of claim 4 wherein the number of said thermally insulated legs is at least two, and at least two of said thermally insulated legs are spaced apart to form a heat dissipation channel adapted to conduct heat away from said heat dissipation space.
7. The charger of claim 2 wherein the number of said heat dissipating apertures covered by the orthographic projection of said first region is greater than the number of heat dissipating apertures covered by the orthographic projection of said second region.
8. The charger of claim 1 wherein a plurality of heat-insulating ribs are further disposed on the inner side of the bottom wall, a plurality of heat-dissipating cavities are formed by surrounding the heat-insulating ribs, the bottom wall and the heat-conducting layer, each heat-dissipating cavity is communicated with at least one heat-dissipating hole, and the heat-dissipating holes are adapted to guide heat corresponding to the heat-dissipating cavities to the outside of the housing.
9. The charger of claim 8 wherein the thermal barrier ribs have a projected shape on the circuit board that is any one or a combination of more than one of a straight line shape, a curved line shape and a folded line shape.
10. The charger of claim 8 wherein the projected shape of the heat dissipation cavity on the circuit board is any one or a combination of more than one of a U-shape, a quadrilateral shape, a circular shape and an elliptical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620850.6U CN219779811U (en) | 2023-03-27 | 2023-03-27 | Charger (charger) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620850.6U CN219779811U (en) | 2023-03-27 | 2023-03-27 | Charger (charger) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219779811U true CN219779811U (en) | 2023-09-29 |
Family
ID=88107806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320620850.6U Active CN219779811U (en) | 2023-03-27 | 2023-03-27 | Charger (charger) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219779811U (en) |
-
2023
- 2023-03-27 CN CN202320620850.6U patent/CN219779811U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |