Heat radiation flow introducing connection device

Abstract

To provide a heat radiation flow introducing connection device capable of improving a heat radiation effect, and reducing a cost.SOLUTION: A heat radiation flow introducing connection device connects a power substrate 2 and a control substrate 1, and contains an aluminium base 3 and a plurality of aluminum connection strips. In each aluminum connection strip, at least one of flow introducing holes 4 to 8 and at least four fixing holes 9 to 12 are installed. The power substrate is installed to each aluminum base, and each aluminum base is used for performing heat radiation of the power substrate. In the case of any one of the aluminum connection strips, each aluminum connection strip is installed between the power substrate and the control substrate; each aluminum connection strip is installed to the power substrate downward by at least two fixing holes; and each aluminum connection strip is installed to the control substrate upward by at least two fixing holes. A large current conduction between the power substrate and the control substrate is realized via each flow introducing hole.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of heat dissipation of current plates, and in particular to a heat dissipation current conducting connection device. [Background technology]

[0002] The conventional power board uses relays, which are expensive, occupy a lot of space, and many wire harnesses are connected to the control board, which makes the connection complicated and slows down the overall heat dissipation.When conducting a large current between the power board and the control board, using a conventional copper bus bar or a large current connector purchased from an external source not only increases the cost but also occupies a lot of space. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT DISCLOSURE The objective of the present invention is to provide a heat dissipation current conducting connection device, which improves the heat dissipation effect and reduces the cost. [Means for solving the problem]

[0004] In order to achieve the above object, the present invention provides the following solutions.

[0005] A heat dissipation current conducting connection device used for connecting a power board and a control board to form a high current protection board, the device includes an aluminum base and a plurality of aluminum connection strips, the aluminum connection strips are provided with at least one current conducting hole and at least four fixing holes; the power board is mounted on the aluminum base, and the aluminum base is used to dissipate heat from the power board; For any of the aluminum connecting strips, the aluminum connecting strip is installed between the power board and the control board, and at least two of the fixing holes are used to install the aluminum connecting strip downward on the power board, and at least two of the fixing holes are used to install the aluminum connecting strip upward on the control board, and a large current is conducted between the power board and the control board through the current guide holes.

[0006] Optionally, the number of said aluminum connecting strips is five.

[0007] Optionally, the five aluminum connecting strips are a first aluminum connecting strip, a second aluminum connecting strip, a third aluminum connecting strip, a fourth aluminum connecting strip and a fifth aluminum connecting strip, respectively; the first aluminum connecting strip has a current guide hole for connecting the positive terminal of a load on the power board and the control board; the current guide hole of the second aluminum connection strip is used to connect the positive terminal of the charger on the power board and the control board; the third aluminum connecting strip has a current guide hole for connecting the positive terminal of a battery on the power board and the control board; the current guide hole of the fourth aluminum connecting strip is used to connect the negative terminal of the battery on the power board and the control board; The current conducting hole in the fifth aluminum connecting strip is used to connect the negative terminal of the load / charger on the power board and the negative terminal of the control board.

[0008] Optionally, the lengths of the first aluminum connecting strip, the second aluminum connecting strip and the third aluminum connecting strip are the same and are all a first preset value, and the lengths of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same and are both a second preset value, and the first preset value is greater than the second preset value.

[0009] Optionally, the installation directions of the first aluminum connecting strip, the second aluminum connecting strip and the third aluminum connecting strip are the same and are all in a first direction, the installation directions of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same and are both in a second direction, and the first direction is perpendicular to the second direction.

[0010] Optionally, said fixation holes are screw fixation holes. Effect of the Invention

[0011] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: The present invention discloses a heat dissipation and current conducting connection device, which includes an aluminum base and a number of aluminum connecting strips, in which a power board is installed on the aluminum base, and the aluminum base supports the power board while dissipating heat from the power board, so as to achieve a good heat dissipation effect. The aluminum connecting strips are installed between the power board and the control board, and the aluminum connecting strips are installed downwards on the power board through the fixing holes on the aluminum connecting strips, and the aluminum connecting strips are installed upwards on the control board, so as to realize the high current conduction between the power board and the control board through the current conducting holes, thereby reducing the usage of external connection members, reducing the occupied space and reducing the usage cost. And the current conducting holes are used instead of the copper busbars and some externally purchased high current connectors, so as to reduce the large amount of wire harnesses, and further reduce the cost and space. [Brief description of the drawings]

[0012] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the embodiments are briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0013] [Figure 1] 1 is a schematic diagram showing the structure of a heat dissipation current conducting connection device according to the present invention; [Diagram 2] FIG. 2 is a structural schematic diagram of the first aluminum connecting strip in the present invention. [Diagram 3] FIG. 2 is a four-view diagram of a first aluminum connecting strip in accordance with the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the technical scope of the present invention.

[0015] In order to make the objects, features and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0016] As shown in Fig. 1, the present invention provides a heat dissipation current conducting connection device for connecting a power board 2 and a control board 1 to form a high current protection board, the device includes an aluminum base 3 and a number of aluminum connecting strips, the aluminum connecting strips are provided with at least one current conducting hole and at least four fixing holes, the fixing holes are screw fixing holes.

[0017] The power board 2 is mounted on the aluminum base 3, and the function of the power board is mainly to conduct large current. The aluminum base 3 is used to dissipate heat from the power board 2. Furthermore, the aluminum base includes an aluminum substrate and an aluminum base, thereby achieving efficient heat dissipation. In addition, a high-power MOS transistor is used in the power board instead of a relay, which can greatly save cost and space.

[0018] In any case of the aluminum connecting strip, the aluminum connecting strip is installed between the power board 2 and the control board 1, the aluminum connecting strip is installed downward on the power board through at least two of the fixing holes, and the aluminum connecting strip is installed upward on the control board through at least two of the fixing holes, and a large current is conducted between the power board and the control board through the current guide holes. Here, the control board mainly provides overcharge, overdischarge, overcurrent, overtemperature, undertemperature and short circuit protection for the lithium iron phosphate battery pack, provides a voltage balancing function during charging, and can also perform parameter setting and data monitoring through upper computer software.

[0019] 1, in one embodiment, the first screw fixing hole 9 and the fourth screw fixing hole 12 fix the control board facing upward, and the second screw fixing hole 10 and the third screw fixing hole 11 fix the power board facing downward, so that the aluminum connecting strip is in close contact with the power board, or the second screw fixing hole 10 and the third screw fixing hole 11 fix the power board and the aluminum base facing downward, so that the power board and the aluminum base are in close contact with each other. The mounting methods of the other aluminum connecting strips are the same.

[0020] The number of the aluminum connecting strips is five, the five aluminum connecting strips being a first aluminum connecting strip, a second aluminum connecting strip, a third aluminum connecting strip, a fourth aluminum connecting strip and a fifth aluminum connecting strip, respectively, and the heights and overall shapes of the five aluminum connecting strips are consistent.

[0021] The first aluminum connecting strip has a first conductive hole 4, which is a P+ port and is used to connect the positive terminal of a load on the power board and the control board.

[0022] The current guide hole of the second aluminum connecting strip is the second current guide hole 5, which is a C+ port, and is used to connect the positive terminal of the charger on the power board and the control board.

[0023] The third aluminum connecting strip has a third conductive hole 6, which is a B+ port and is used to connect the positive terminal of the battery on the power board and the control board.

[0024] The fourth aluminum connecting strip has a fourth conductive hole 7, which is a B-port and is used to connect the negative terminal of the battery on the power board and the control board.

[0025] The fifth aluminum connecting strip has a fifth conductive hole 8, which is a P- / C-port and is used to connect the negative terminal of the load / charger on the power board and the control board.

[0026] The lengths of the first aluminum connecting strip, the second aluminum connecting strip and the third aluminum connecting strip are the same and are all a first preset value, the first preset value is 113 mm, the lengths of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same and are both a second preset value, the second preset value is 70 mm, and the first preset value is greater than the second preset value.

[0027] The installation directions of the first aluminum connecting strip, the second aluminum connecting strip, and the third aluminum connecting strip are the same, and are all a first direction, and are arranged along the x-axis direction as shown in FIG. 1, and the installation directions of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same, and are both a second direction, and are arranged along the y-axis direction as shown in FIG. 1, and the first direction is perpendicular to the second direction.

[0028] Taking the first aluminum connecting strip as an example, as shown in Fig. 2, the aluminum connecting strip is provided with one guiding hole and four fixing holes, which are screw fixing holes, while the corresponding aluminum connecting strip is provided with a first guiding hole 4, a first screw fixing hole 9, a second screw fixing hole 10, a third screw fixing hole 11 and a fourth screw fixing hole 12.

[0029] FIG. 3 is a four-sided view of the first aluminum connecting strip corresponding to FIG.

[0030] In summary, in the device of the present invention, the aluminum base plays the role of heat dissipation and fixed support, the aluminum connection strip plays the role of connecting, supporting and fixing the control board and the power board, which is safe, solid and reliable, and also plays the role of conducting large current, specifically, it can stably and reliably conduct large current of more than 100 amperes or even hundreds of amperes, the current guide hole replaces the copper bus bar and some externally purchased large current connectors, reduces the large amount of wire harnesses, and greatly reduces costs and space. The entire high current protection board composed of the above multiple parts can withstand a short circuit current of more than 2000A, and the short circuit protection time can reach within 50 microseconds, which greatly improves the use safety of the device compared with the short circuit protection time of traditional relays which is more than tens of milliseconds.

[0031] Each embodiment of the present specification will be described step by step, and each embodiment will be described with a focus on the differences from other embodiments, and the same or similar parts between each embodiment may be referred to each other. For the systems disclosed in the embodiments, the explanations are relatively simple since they correspond to the methods disclosed in the embodiments, and the relevant parts may be referred to the explanations of the methods.

[0032] In this specification, the principle and embodiment of the present invention are described using specific examples, but the description of the above examples is only to help understand the method of the present invention and its core idea. In addition, a person skilled in the art can change both the specific embodiment and the application scope based on the spirit of the present invention. In summary, the contents of this specification should not be interpreted as limiting the present invention. [Explanation of symbols]

[0033] 1 Control Board 2 Power Board 3 Aluminum Base 4 1st flow hole 5 2nd flow hole 6 Third flow hole 7 4th flow guide hole 8 5th flow guide hole 9 First screw fixing hole 10 Second screw fixing hole 11 3rd screw fixing hole 12 4th screw fixing hole

Claims

1. A heat dissipation current conducting connection device used for connecting a power board and a control board to form a high current protection board, the device includes an aluminum base and a plurality of aluminum connection strips, the aluminum connection strips are provided with at least one current conducting hole and at least four fixing holes; the power board is mounted on the aluminum base, and the aluminum base is used to dissipate heat from the power board; For any of the aluminum connecting strips, the aluminum connecting strip is installed between the power board and the control board, and the aluminum connecting strip is installed downward on the power board through at least two of the fixing holes, and the aluminum connecting strip is installed upward on the control board through at least two of the fixing holes, and a large current is conducted between the power board and the control board through the current guide holes.

2. 2. The heat dissipation and current conducting connection device as claimed in claim 1, wherein the number of said aluminum connecting strips is five.

3. The five aluminum connecting strips are a first aluminum connecting strip, a second aluminum connecting strip, a third aluminum connecting strip, a fourth aluminum connecting strip, and a fifth aluminum connecting strip, the first aluminum connecting strip has a current guide hole for connecting the positive terminal of a load on the power board and the control board; the current guide hole of the second aluminum connection strip is used to connect the positive terminal of the charger on the power board and the control board; the third aluminum connecting strip has a current guide hole for connecting the positive terminal of a battery on the power board and the control board; the fourth aluminum connecting strip has a current guide hole for connecting the negative terminal of the battery on the power board and the control board; 3. The heat dissipation and current conducting connection device as claimed in claim 2, wherein the current conducting hole of the fifth aluminum connecting strip is used to connect the negative terminal of a load / charger on the power board and the negative terminal of a charger on the control board.

4. 4. The heat dissipation current connection device as described in claim 3, wherein the lengths of the first aluminum connecting strip, the second aluminum connecting strip and the third aluminum connecting strip are the same and are all a first preset value, the lengths of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same and are all a second preset value, and the first preset value is greater than the second preset value.

5. 5. The heat dissipation and current conducting connection device as described in claim 4, wherein the installation directions of the first aluminum connecting strip, the second aluminum connecting strip, and the third aluminum connecting strip are the same and are all in a first direction, the installation directions of the fourth aluminum connecting strip and the fifth aluminum connecting strip are the same and are both in a second direction, and the first direction is perpendicular to the second direction.

6. 2. The heat dissipation and current conducting connection device as claimed in claim 1, wherein the fixing hole is a screw fixing hole.

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