CN216600596U - A kind of control device - Google Patents
A kind of control device Download PDFInfo
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- CN216600596U CN216600596U CN202122997561.1U CN202122997561U CN216600596U CN 216600596 U CN216600596 U CN 216600596U CN 202122997561 U CN202122997561 U CN 202122997561U CN 216600596 U CN216600596 U CN 216600596U
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Abstract
The embodiment of the utility model provides a controller, which comprises a circuit board, a heating device, an insulating sheet, a radiator, a screw and an insulating sleeve, wherein the circuit board is provided with a plurality of first connecting wires; the heating device is electrically connected with the circuit board; the heat generating device has a second hole, the heat sink has a third hole, and the insulating sheet has a fourth hole; the screw fixes the heating device, the insulating sheet and the radiator through the second hole, the third hole and the fourth hole; the insulating sleeve sleeves at least part of the stud of the screw, and at least part of the insulating sleeve is positioned between the stud and the inner wall of the second hole; at least part of the insulating sleeve is positioned between the stud and the inner wall of the fourth hole. The controller can meet the requirement of electrical safety distance and has high safety.
Description
Technical Field
The application relates to the technical field of electric control, in particular to a controller and a heating device installation method.
Background
In an electronic control type controller, a heating device such as a switching tube, a freewheeling diode or a chip is often included; in order to dissipate heat of the heating device, a radiator is required to be installed; heat sinks are typically made of metal heat dissipating materials, such as aluminum; because the heating device is an electrified device, when the heating device is fixed to the radiator, how to ensure the electrical safety distance is the technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a controller, which can meet the electrical safety distance requirement.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a controller comprises a circuit board, a heating device, an insulating sheet, a radiator, a screw and an insulating sleeve; the heating device is electrically connected with the circuit board; the heat generating device has a second hole, the heat sink has a third hole, and the insulating sheet has a fourth hole; the screw fixes the heating device, the insulating sheet and the radiator through the second hole, the third hole and the fourth hole; the insulating sleeve sleeves at least part of the stud of the screw, and at least part of the insulating sleeve is positioned between the stud and the inner wall of the second hole; at least part of the insulating sleeve is positioned between the stud and the inner wall of the fourth hole.
In one embodiment, the stud of the screw comprises a first smooth shank portion and a second threaded shank portion; the insulating sleeve wraps the first stud portion.
In one embodiment, the insulation sheet is provided with a boss along the fourth hole, at least part of the boss is positioned in the third hole, and at least part of the insulation sleeve is positioned between the stud and the inner wall of the third hole; the third bore includes a third first bore portion and a third second bore portion; the third second hole part is provided with internal threads, and the second screw part and the third second hole part are fixed through threads; the aperture of the third first hole portion is larger than the sum of the aperture of the third second hole portion and the thickness of the protruding portion.
In one embodiment, the circuit board has a first hole having an aperture smaller than a diameter of a nut of the screw; the screw fixes the heat generating device, the insulating sheet and the heat sink through the first hole, the second hole, the third hole and the fourth hole; the controller also comprises a limiting gasket; the limiting gasket comprises a fifth hole and is positioned between the circuit board and the heating device; the screw also passes through the fifth hole.
In one embodiment, the circuit board has a first hole having an aperture diameter larger than a diameter of a nut of the screw; and the screw penetrates through the first hole and then fixes the heating device, the insulating sheet and the radiator through the second hole, the fourth hole and the third hole.
In one embodiment, the insulation sheet is provided with a first limiting column, and the first limiting column and the boss are located on the same side of the insulation sheet; the radiator is provided with a first limiting hole; the positions of the first limiting column and the boss correspond to the positions of the first limiting hole and the third hole respectively; the first limiting column is located in the first limiting hole.
In one embodiment, the device further comprises a positioning piece, wherein the positioning piece is at least provided with 2 second limiting columns; the positioning piece is provided with a limiting frame matched with the insulating sheet in shape, and the radiator is provided with a second limiting hole corresponding to the second limiting column; the second limiting column is located in the second limiting hole, and the insulating sheet is located in the limiting frame.
In one embodiment, the heat sink is a metal heat sink, and the controller adopts a refrigerant heat dissipation mode; the metal radiator comprises a channel, and the channel can be fixedly installed and in heat conduction contact with a refrigerant pipe of a system where the controller is located; or the controller adopts an air cooling heat dissipation mode; and a fin at one side of the metal radiator.
In one embodiment, the insulation sheet is square, and the heat generating device is an IGBT; the length of the insulating sheet is greater than the length of the IGBT by 2mm, and the width of the insulating sheet is greater than the width of the IGBT by 2 mm; the IGBT is located insulating piece central point puts.
In one embodiment, the heat sink is an aluminum heat sink; heat-conducting silicone grease or heat-conducting silica gel is coated between the heating device and the insulating sheet; heat-conducting silicone grease or heat-conducting silicone gel is coated between the insulating sheet and the aluminum radiator; the insulating sleeve is a heat-shrinkable sleeve, and the insulating sheet is a ceramic sheet.
The embodiment of the application provides a controller, which comprises a circuit board, a heating device, an insulating sheet, a radiator, a screw and an insulating sleeve; the heat generating device is provided with a second hole, the radiator is provided with a third hole, and the insulating sheet is provided with a fourth hole; the screw fixes the heating device, the insulating sheet and the radiator through the second hole, the third hole and the fourth hole; the insulating sleeve is sleeved on at least part of the stud of the screw, and at least part of the insulating sleeve is positioned between the stud and the inner wall of the second hole; at least part of the insulating sleeve is positioned between the stud and the inner wall of the fourth hole. The safety distance between the heating device and the radiator and between the heating device and the screws can be increased by additionally arranging the insulating sleeve and the insulating sheet, so that the safety performance is favorably improved, and the design requirement is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a cross-sectional view of a controller configuration provided in accordance with an embodiment of the present application;
FIG. 2 is a cross-sectional view of another controller configuration provided in accordance with an embodiment of the present application;
fig. 3 is an exploded view of a structure of a controller heating device according to an embodiment of the present application before installation;
fig. 4 is a schematic structural diagram of an insulation sheet according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a screw and an insulating sleeve after installation according to an embodiment of the present application;
FIG. 6 is a cross-sectional view of a heat sink structure according to an embodiment of the present application;
fig. 7 is an exploded view of another structure of a controller heating device according to an embodiment of the present application before installation;
fig. 8 is a schematic structural diagram of an insulating sheet and a heat sink according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of another insulation sheet and heat sink provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of an IGBT and an insulating sheet according to an embodiment of the present application;
fig. 11 is a flowchart of a method for mounting a heat generating device according to an embodiment of the present disclosure.
Detailed Description
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. In the following description, the appearances of the designated orientations or positional relationships, such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are only for convenience of describing embodiments and simplifying the description according to the drawings, and do not indicate or imply that the designated devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In the field of electric control, such as air conditioner controllers, many devices in the controllers generate heat, especially power devices (such as Insulated Gate Bipolar Transistors (IGBT)); in order to improve the stability and life of the controller, the heat generating device needs to be dissipated. At present, a heating device mainly dissipates heat by being fixed with a radiator and in heat conduction contact with the radiator; when the bolt is used for fixing, because the bolt, the radiating surface of the heating device and the radiator are all conductors, the electrical safety distance between the heating device, the bolt and the radiator is difficult to ensure. Specifically, the safety distance includes an electrical gap (space distance), a creepage distance (creepage distance), and an insulation penetration distance, which is generally achieved by selecting an insulation material that satisfies a specific requirement of an insulation grade; and the electrical clearance and the creepage distance need to be realized according to the wiring and mounting structure design of the circuit board. The lower surface of a common heating device, such as an IGBT, comprises a metal layer, which has a heat dissipation function, and the metal layer is in heat-conducting contact with a heat sink to dissipate heat; when the controller works, the metal layer is electrified; the metal layer is shown in fig. 10 by the shaded portion of IGBT: 201. How to ensure the safe distance between the metal layer and the heat sink is an urgent technical problem to be solved.
Based on this, the embodiment of the present application provides a controller, as shown in fig. 1 or 3, including a circuit board 1, a heat generating device 2, an insulating sheet 4, a heat sink 3, a screw 5, and an insulating sleeve 6; the heating device 2 is electrically connected with the circuit board 1 and is a part of a control circuit of the controller; the heat generating device 2 has a second hole 21, the heat sink 3 has a third hole 31, and the insulating sheet 4 has a fourth hole 41; the screw 5 fixes the heating device 2, the insulating sheet 4 and the radiator 3 through the second hole, the third hole and the fourth hole; the insulating sleeve 6 is sleeved on at least part of the stud of the screw 5, and at least part of the insulating sleeve 6 is positioned between the stud and the inner wall of the second hole 21; at least part of the insulating sleeve 6 is located between the stud and the inner wall of the fourth bore 41. In particular, the insulating sheet is a heat-conductive insulating sheet, such as a ceramic sheet made of ceramic, but may also be made of other materials with stronger heat-conductive performance and higher insulation grade.
In this embodiment, the insulating sleeve 6 is additionally arranged on the screw 5, and the insulating sheet is additionally arranged between the heating device 2 and the radiator 4 to increase the electric gap and creepage distance between the heating device metal layer and the radiator, so that the controller meets the relevant requirements of safe distance, and the safety of the controller is improved.
Further, in order to prevent the insulation bushing from being broken, in one embodiment, as shown in fig. 5, the stud of the screw 5 includes a first smooth stud portion 51 and a second threaded stud portion 52; the insulating sleeve 6 wraps and sleeves the first stud part 51; the second stud part can be driven into the third hole and is matched and fixed with the thread in the third hole.
Further, in order to ensure the heat dissipation performance, the insulation sheet should not be set too thick. For example, the insulating sheet is set to have a thickness of 2.5mm or less. At this time, in order to secure a safety distance, in one embodiment, as shown in fig. 2 to 4, the insulation sheet 4 is provided with a protrusion 42 along the fourth hole, and the protrusion 42 may increase an electrical gap between the heat generating device metal layer and the heat sink and a creepage distance from the heat generating device metal layer to the heat sink. Specifically, at least part of the boss 42 is located in the third bore 31, and at least part of the insulating sleeve 6 is located between the stud and the inner wall of the third bore; when the insulating sheet 4 is provided with the convex portion 42, as shown in fig. 6, the third hole 31 includes a third first hole portion 311 and a third second hole portion 312; the third second hole 312 is provided with an internal thread, and the second bolt portion and the third second hole are fixed by a thread; the aperture of the third first hole portion is larger than the sum of the aperture of the third second hole portion and the thickness of the protruding portion, and the protruding portion 42 is located in the third first hole portion 311. In this embodiment, through increasing the bellying, the electric clearance between adjustment metal level and the radiator makes it satisfy relevant requirement with creepage distance to can reduce insulating piece thickness, minimize for satisfying the influence of safe distance's design to the radiating effect. As shown in fig. 2, the safety distance of the controller can be flexibly adjusted in the X/Y direction according to the structure combination shown in the figure, and specifically, the thickness of the insulation sheet, the height of the protruding portion, the thickness, the length of the insulation sleeve and the like can be adjusted.
In the embodiment where the protruding portion is provided, in order to ensure the safety distance, the sum of the distance from the upper surface of the insulating sheet 4 to the lower surface of the protruding portion 42 and the thickness of the protruding portion 42 is greater than the safety distance required by the controller.
In the embodiment without the convex part, the controller can meet the electrical safety distance requirement by setting the length of the insulating sleeve 6 and the thickness of the insulating sheet 4. In order to ensure the safe distance, the thickness of the insulating sheet 4 may be set to be equal to or greater than the required creepage distance and the electrical clearance, i.e., the thickness of the insulating sheet is greater than the safe distance required by the controller.
Meanwhile, the upper edge of the insulating sleeve 6 is also preferably arranged close to the lower edge of the screw cap of the screw as much as possible, so that the electrical safety distance between the metal layer of the heating device and the screw is prevented from failing to meet the requirement. Optionally, the position of the upper edge of the insulating sleeve 6 is not lower than the position of the upper surface of the heating device.
In addition, the distance between the lower edge of the insulating sleeve and the upper surface of the insulating plate should be larger than the safety distance required by the controller.
It should be noted that the upper surface, the lower surface, the upper edge, and the lower edge are referred to herein with reference to the orientation shown in fig. 1/2/3/7.
Referring to fig. 7, the heat generating device 2 is generally disposed at the lower side of the circuit, and in order to facilitate fixing the heat generating device 2 and the insulating sheet 41 to the heat sink 3, a first hole 11 is provided on the circuit board 1, and the diameter of the first hole 11 is smaller than the diameter of the nut of the screw 5; the screws 5 fix the heat generating device 2, the insulating sheet 4 and the heat sink 3 through the first hole 11, the second hole 21, the fourth hole 41 and the third hole 31; in the embodiment, in order to ensure the fastening of the heating device with the insulating sheet and the radiator, a limiting gasket 7 is further arranged; the limiting gasket 7 comprises a fifth hole 71, and the limiting gasket 7 is positioned between the circuit board 1 and the heating device 2; the screw also passes through the fifth hole.
In another embodiment, the circuit board 1 has a first hole 11, but the diameter of the first hole 11 is larger than the diameter of the nut of the screw 5; at this time, the screw 5 may be inserted through the first hole 11, and after the screw is inserted through the first hole 11, the heat generating device 2, the insulating sheet 4, and the heat sink 3 may be fixed through the second hole 21, the fourth hole 41, and the third hole 31.
As shown in fig. 8, since the heat dissipation surface of the heat sink has a larger area, in order to facilitate the insulating sheet to be fixedly mounted, the insulating sheet is provided with a first limiting column 43, and the first limiting column 43 and the protruding portion 42 are located on the same side of the insulating sheet 4; the heat sink 3 is provided with a first limit hole 32; the positions of the first limiting column 43 and the boss 42 correspond to the positions of the first limiting hole and the third hole respectively; the mounting between the insulating sheet and the heat sink is achieved by fitting the first stopper posts 43 and the bosses 42 into the first stopper holes 32 and the third holes 31. After the insulating sheet and the heat sink are mounted, the heat generating device 2 is mounted on the heat sink on which the insulating sheet has been placed. In order to secure the safety gap, the heat generating device should be centrally mounted on the insulating sheet, that is, as shown in fig. 10, the IGBT: the metal layer of 201 has certain interval with the edge of insulating piece, prevents that metal layer and insulating piece edge from being close too much, and insulating piece thickness is less hour, can't satisfy safe distance's requirement. The distance between the metal layer and the edge of the insulating sheet is designed according to the safe distance requirements of different controllers, in other words, the size and the thickness of the insulating sheet are set according to the shape of the metal layer of the heating device and the safe distance required by the controller. In fig. 8, 4(01) is a schematic structural diagram of the back surface of the insulating sheet, and 4(02) is a schematic structural diagram of the front surface of the insulating sheet. The general controller comprises a plurality of IGBTs, and a corresponding number of insulating sheets 4, third holes 31 and first limiting holes 32 are required to be arranged.
In another embodiment, in order to facilitate the fixed installation of the insulation sheet, as shown in fig. 9, the controller further includes a positioning member 8, and the positioning member 8 is provided with at least 2 second limiting posts 81; the positioning piece 8 is provided with a limiting frame 82 matched with the shape of the insulating sheet, and the radiator 3 is provided with a second limiting hole 33 corresponding to the second limiting column 81; the second limiting column 81 is located in the second limiting hole 33, and the insulating sheet is located in the limiting frame. The number of the limiting frames 82 can be freely set and can be 1, 2, 3 or 6. Specifically, the number of the IGBTs of the controller and the installation convenience can be set, and the method is not limited in the application.
In the above embodiment, the heat sink is a metal heat sink, and the controller may adopt a cooling medium heat dissipation manner, as shown in fig. 3, the metal heat sink includes a channel 34, and the channel 34 can be fixedly installed and thermally contacted with a cooling medium pipe of a system where the controller is located. Of course, the controller may also adopt an air-cooling heat dissipation method, as shown in fig. 8, when the air-cooling heat dissipation method is adopted, in order to improve the heat dissipation efficiency, a fin 35 is provided at one side of the metal heat sink.
Further, in one embodiment, in order to ensure a safe distance, as shown in fig. 10, the length l2 of the insulation sheet 4 is greater than the IGBT: length l1 of 201 is 2mm greater, width w2 of insulating sheet 4 is greater than IGBT: width w1 of 201 is 2mm greater; IGBT: the insulating sheet 4 is centered at 201 so that the metal layer (shown as a dashed-line shaded portion in fig. 10) is also substantially centered on the insulating sheet.
In the above embodiments, the metal heat sink may be an aluminum heat sink; heat-conducting silicone grease or heat-conducting silicone gel is coated between the heating device 2 and the insulating sheet 4; heat-conducting silicone grease or heat-conducting silica gel is coated between the insulating sheet 4 and the aluminum radiator; the insulating sleeve is a heat-shrinkable sleeve, and the insulating sheet is a ceramic sheet.
The embodiment of the application also provides a heating device installation method of the controller, and as mentioned above, the controller comprises the circuit board 1, the heating device 2, the insulating sheet 4, the radiator 3, the screw 5 and the insulating sleeve 6; the circuit board 1 has a first hole 11, the heat generating device 2 has a second hole 21, the heat sink 3 has a third hole 31, and the insulating sheet 4 has a fourth hole 41; as shown in fig. 11, the mounting method includes the steps of:
step 101: placing an insulating sheet onto the heat sink such that the fourth and third holes are aligned;
step 102: sleeving an insulating sleeve on a stud of the screw;
step 103: driving screws: and a screw sleeved with an insulating sleeve penetrates through the first hole, the second hole and the fourth hole to be driven into the third hole of the radiator, so that the heating device, the insulating sheet and the radiator are fixed.
Further, in an embodiment, the insulating sleeve is a heat-shrinkable sleeve, in this embodiment, after the heat-shrinkable sleeve is sleeved on the stud, the heat-shrinkable sleeve is heated, so that the heat-shrinkable sleeve tightly sleeves the stud and the heat-shrinkable sleeve tightly sleeves the stud, and the distance between the upper edge of the heat-shrinkable sleeve and the plane where the metal layer of the heat-generating device is located is greater than or equal to the safety distance required by the controller; of course, in some cases, because the metal layer has a certain distance from the edge to the inner surface of the second hole of the heat-generating device, when the distance between the upper edge of the heat-shrinkable sleeve and the plane where the metal layer of the heat-generating device is located is slightly smaller than the safety distance required by the controller, for example, smaller than (the safety distance is-0.2 mm), the controller may also meet the safety distance requirement. In addition, in a specific embodiment, the distance between the upper edge of the heat shrinkable sleeve and the plane of the metal layer of the heat generating device is greater than or equal to 2 mm. Regardless of the distance setting, it is sufficient for the controller to satisfy the safety distance. The length of the heat-shrinkable sleeve is slightly larger, so that the creepage distance between the metal layer and the screw or the radiator through the heat-shrinkable sleeve can meet the design requirement of the controller.
Further, in an embodiment, in order to increase the heat conduction effect, the method for mounting the heat generating device further includes the steps of:
heat-conducting silicone grease or heat-conducting silicone gel is coated between the heating device 2 and the insulating sheet 4; specifically, heat-conducting silicone grease or heat-conducting silicone gel is coated between the metal layer of the heating device 2 and the upper surface of the insulating sheet;
heat-conducting silicone grease or heat-conducting silicone gel is coated between the insulating sheet 4 and the aluminum radiator; specifically, heat-conducting silicone grease or heat-conducting silicone gel is coated between the lower surface of the insulating sheet and the radiating surface of the radiator.
Furthermore, if one side part of the insulating sheet is provided with a first limiting column and a boss; a first limiting hole is correspondingly formed in one side part of the radiator; step 101 placing an insulating sheet onto a heat sink comprises: and placing the first limiting column and the boss into the first limiting hole and the third hole.
In another embodiment, if the controller further comprises a positioning member 8, and the positioning member 8 is provided with at least 2 second limiting posts 81; the positioning piece 8 is provided with a limiting frame 82 matched with the shape of the insulating sheet, and the radiator 3 is provided with a second limiting hole 33 corresponding to the second limiting column 81; step 101 placing an insulating sheet onto a heat sink comprises:
the heating device 2 is placed in the limit frame 82;
the second position-limiting columns 81 of the positioning members 8 are placed in the corresponding second position-limiting holes 33.
Further, the controller can be applied to an outdoor unit of an air conditioner.
In the description of the specification, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A controller is characterized by comprising a circuit board, a heating device, an insulating sheet, a radiator, a screw and an insulating sleeve; the heating device is electrically connected with the circuit board; the heat generating device has a second hole, the heat sink has a third hole, and the insulating sheet has a fourth hole; the screw fixes the heating device, the insulating sheet and the radiator through the second hole, the third hole and the fourth hole; the insulating sleeve sleeves at least part of the stud of the screw, and at least part of the insulating sleeve is positioned between the stud and the inner wall of the second hole; at least part of the insulating sleeve is positioned between the stud and the inner wall of the fourth hole.
2. The controller of claim 1, wherein the stud of the screw comprises a first smooth shank portion and a second threaded shank portion; the insulating sleeve wraps the first stud portion.
3. A controller according to claim 2, wherein the insulating sheet is provided with a boss along the fourth aperture, at least part of the boss being located within the third aperture and at least part of the insulating sleeve being located between the stud and the third aperture inner wall; the third bore includes a third first bore portion and a third second bore portion; the third second hole part is provided with internal threads, and the second screw part and the third second hole part are fixed through threads; the aperture of the third first hole portion is larger than the sum of the aperture of the third second hole portion and the thickness of the protruding portion.
4. The controller of claim 1, wherein the circuit board has a first hole having a diameter smaller than a diameter of a nut of the screw; the screw fixes the heat generating device, the insulating sheet and the heat sink through the first hole, the second hole, the third hole and the fourth hole; the controller also comprises a limiting gasket; the limiting gasket comprises a fifth hole and is positioned between the circuit board and the heating device; the screw also passes through the fifth hole.
5. The controller of claim 1, wherein the circuit board has a first hole having a diameter larger than a diameter of a nut of the screw; and the screw penetrates through the first hole and then fixes the heating device, the insulating sheet and the radiator through the second hole, the fourth hole and the third hole.
6. The controller of claim 3, wherein the insulating sheet is provided with a first limiting column, and the first limiting column and the boss are located on the same side of the insulating sheet; the radiator is provided with a first limiting hole; the positions of the first limiting column and the boss correspond to the positions of the first limiting hole and the third limiting hole respectively; the first limiting column is located in the first limiting hole.
7. The controller according to any one of claims 1 to 4, further comprising a positioning member, wherein the positioning member is provided with at least 2 second limiting posts; the positioning piece is provided with a limiting frame matched with the insulating sheet in shape, and the radiator is provided with a second limiting hole corresponding to the second limiting column; the second limiting column is located in the second limiting hole, and the insulating sheet is located in the limiting frame.
8. The controller of claim 1, wherein the heat sink is a metal heat sink, and the controller employs a coolant heat dissipation manner; the metal radiator comprises a channel, and the channel can be fixedly installed and in heat conduction contact with a refrigerant pipe of a system where the controller is located; or the controller adopts an air cooling heat dissipation mode; and a fin at one side of the metal radiator.
9. The controller according to claim 1, wherein the insulating sheet is square, and the heat generating device is an IGBT; the length of the insulating sheet is greater than the length of the IGBT by 2mm, and the width of the insulating sheet is greater than the width of the IGBT by 2 mm; the IGBT is located insulating piece central point puts.
10. The controller of claim 9, wherein the heat sink is an aluminum heat sink; heat-conducting silicone grease or heat-conducting silica gel is coated between the heating device and the insulating sheet; heat-conducting silicone grease or heat-conducting silicone gel is coated between the insulating sheet and the aluminum radiator; the insulating sleeve is a heat-shrinkable sleeve, and the insulating sheet is a ceramic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997561.1U CN216600596U (en) | 2021-11-30 | 2021-11-30 | A kind of control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997561.1U CN216600596U (en) | 2021-11-30 | 2021-11-30 | A kind of control device |
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| CN216600596U true CN216600596U (en) | 2022-05-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938569A (en) * | 2021-11-30 | 2022-08-23 | 杭州先途电子有限公司 | Controller and device installation method |
| CN116033692A (en) * | 2023-03-29 | 2023-04-28 | 深圳艾为电气技术有限公司 | IGBT-based driving controller, high-voltage electric compressor and assembly mode |
-
2021
- 2021-11-30 CN CN202122997561.1U patent/CN216600596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938569A (en) * | 2021-11-30 | 2022-08-23 | 杭州先途电子有限公司 | Controller and device installation method |
| CN116033692A (en) * | 2023-03-29 | 2023-04-28 | 深圳艾为电气技术有限公司 | IGBT-based driving controller, high-voltage electric compressor and assembly mode |
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