EMC (Electro Magnetic Compatibility) load box for testing electromagnetic compatibility of automobile

Abstract

The utility model provides an EMC load box for automobile electromagnetic compatibility test, which comprises the following structures: a liquid cooling module, a liquid path port of the liquid cooling module is fixedly provided with a connecting pipe, and the other end of the connecting pipe is fixedly provided with a liquid cooling plate; the left side and the right side of the frame are detachably connected with a left protective plate and a right protective plate respectively; the mounting plates are symmetrically arranged on the inner side of the frame front and back; a butt joint groove is fixedly formed in the outer side of the partition plate, the installation plate, the left protection plate and the right protection plate are matched, heat dissipation treatment of the liquid cooling module on the installation plate is completed, the partition plate is spliced with the first fins and the second fins through the butt joint groove, and heat generated by working of the circuit board is accumulated in an independent module installation area. And the liquid cooling module, the connecting pipe and the liquid cooling plate are matched to carry out heat dissipation treatment on the left protective plate and the right protective plate, so that the cooling design of the equipment is realized, and the problem of insufficient heat dissipation treatment of the existing EMC load box is solved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of EMC load boxes, in particular to an EMC load box for automobile electromagnetic compatibility testing. Background Art

[0002] The EMC load box is used to avoid signal interference that affects the electromagnetic compatibility test of the car. Therefore, PCB boards are used to replace traditional wiring and multi-layer copper shielding. At the same time, the input and output of the load box are arranged separately, and each cavity is separated by a metal plate. At the same time, a shielding copper mesh needs to be installed at the connection gap of the box.

[0003] The EMC load box has a closed design, the joints of the box are also blocked, and the internal space of the box is isolated, which makes it impossible to use traditional air cooling to cool the circuit boards inside the box. During the long-term testing of vehicle equipment in the electromagnetic compatibility test laboratory, the EMC load box has a significant temperature rise phenomenon.

[0004] The inventor proposes an EMC load box for automobile electromagnetic compatibility testing, which uses liquid cooling to cool the EMC load box. The cooling operation is carried out by contact cooling the shell of the EMC load box, and the box structure of the EMC load box is redesigned to adapt to the liquid cooling module. Utility Model Content

[0005] 1. Technical problems solved by the utility model:

[0006] The utility model provides an EMC load box for automobile electromagnetic compatibility testing, which solves the problem of insufficient heat dissipation in the existing EMC load box.

[0007] 2. Technical solution:

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: an EMC load box for automobile electromagnetic compatibility testing, comprising the following structure:

[0009] A liquid cooling module, wherein a connecting pipe is fixedly arranged at a liquid path port of the liquid cooling module, and a liquid cooling plate is fixedly arranged at the other end of the connecting pipe.

[0010] A frame, wherein the left and right sides of the frame are respectively detachably connected with a left guard plate and a right guard plate.

[0011] The mounting plate is symmetrically arranged on the inner side of the frame.

[0012] A partition plate, the outer side of which is fixedly provided with a docking groove.

[0013] Furthermore, the left and right sides of the inner wall of the liquid cooling plate respectively contact the outer sides of the left guard plate and the right guard plate.

[0014] Furthermore, the front and rear ends of the frame are respectively connected with a front panel and a rear panel, and a power connection socket and a power switch are nested on the outer side of the rear panel.

[0015] Furthermore, a first fin is fixedly provided on the left side of the right guard plate, and the first fin extends between the opposite sides of the two mounting plates, and the left side of the first fin cooperates with the docking groove.

[0016] Furthermore, second fins are fixedly provided on opposite sides of the two mounting plates, the second fins cooperate with the docking grooves, and the opposite sides of the two mounting plates are respectively clamped with the front and rear sides of the sealing plate, and circuit board screw holes are fixedly provided on the surface of the second fins that contact the left side of the sealing plate and the right side of the left guard plate.

[0017] Furthermore, the left and right sides of the mounting plate respectively interfere with the right side of the left guard plate and the left side of the right guard plate, and the surface of the mounting plate is fixed with a wire hole, and the surface of the mounting plate is clamped with a hole plug that cooperates with the wire control.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0020] The utility model provides an EMC load box for automobile electromagnetic compatibility testing. The installation plate, the left guard plate and the right guard plate cooperate to complete the heat dissipation treatment of the installation plate by the liquid cooling module. The partition plate is spliced ​​with the first fin and the second fin respectively through the docking groove. The heat generated by the circuit board is accumulated in the independent module installation area. The liquid cooling module, the connecting pipe and the liquid cooling plate cooperate to perform heat dissipation treatment on the left guard plate and the right guard plate, thereby realizing the temperature reduction design of the equipment.

[0021] The utility model provides an EMC load box for automobile electromagnetic compatibility testing. The circuit board screw hole provided on the second fin of the mounting plate is used for installing components such as circuit board components of the test module. The mounting plate, the partition plate and the right guard plate cooperate to divide an independent module installation area between the left guard plate and the right guard plate. At the same time, the mounting plate cooperates with the second fin to improve the overall structural strength of the mounting plate.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0024] Figure 2 It is an exploded view of the framework structure of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the left guard plate structure of the utility model;

[0026] Figure 4 It is an exploded view of the mounting plate structure of the utility model;

[0027] Figure 5 It is a half-section stereoscopic view of the right guard plate structure of the utility model;

[0028] Figure 6 This utility model Figure 5 A magnified view of the structure at center A;

[0029] Figure 7 This utility model Figure 5 A magnified view of the structure at B in the middle.

[0030] Reference numerals:

[0031] Liquid cooling module-1;

[0032] Connecting pipe-2;

[0033] Liquid cooling plate - 3;

[0034] Frame-4; front panel-41; rear panel-42;

[0035] Left guard - 5;

[0036] Right guard plate-6; first fin-61;

[0037] Mounting plate-7; sealing plate-71; second fin-72;

[0038] Partition-8; docking groove-81. DETAILED DESCRIPTION

[0039] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element; the terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] See attached Figure 1-4 The utility model provides an EMC load box for automobile electromagnetic compatibility testing, comprising the following structure:

[0043] A liquid cooling module 1 is provided with a connecting pipe 2 at a liquid path port of the liquid cooling module 1 , and a liquid cooling plate 3 is provided at the other end of the connecting pipe 2 .

[0044] The frame 4 has a left guard plate 5 and a right guard plate 6 detachably connected to the left and right sides of the frame 4.

[0045] The mounting plate 7 is symmetrically arranged on the inner side of the frame 4 front and back.

[0046] The partition plate 8 has a docking groove 81 fixedly disposed on its outer side.

[0047] In this embodiment, Figure 1 As shown, the left and right sides of the inner wall of the liquid cooling plate 3 are in contact with the outer sides of the left guard plate 5 and the right guard plate 6 respectively.

[0048] The liquid cooling module 1 , the connecting pipe 2 and the liquid cooling plate 3 cooperate to dissipate heat for the left guard plate 5 and the right guard plate 6 .

[0049] In this embodiment, Figure 1 and Figure 2 As shown, the front and rear ends of the frame 4 are respectively clamped with a front panel 41 and a rear panel 42 , and a power connection socket and a power switch are embedded on the outer side of the rear panel 42 .

[0050] The front panel 41 is used for installing the wiring socket of the subsequent functional test module, and the rear panel 42 is used for the power supply connection of the product.

[0051] In this embodiment, Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, a first fin 61 is fixedly provided on the left side of the right guard plate 6 , and the first fin 61 extends between the opposite sides of the two mounting plates 7 , and the left side of the first fin 61 cooperates with the docking groove 81 .

[0052] The left guard plate 5 cooperates with the first fin 61 to increase the surface area of ​​the left side of the left guard plate 5 facing the mounting plate 7 .

[0053] In this embodiment, Figure 3, Figure 4 , Figure 5 and Figure 7 As shown, second fins 72 are fixedly provided on opposite sides of the two mounting plates 7, and the second fins 72 cooperate with the docking grooves 81. The opposite sides of the two mounting plates 7 are respectively clamped with the front and rear sides of the sealing plate 71, and the left side of the sealing plate 71 and the right side of the left guard plate 5 are in contact with the surface of the second fin 72, and circuit board screw holes are fixedly provided.

[0054] The mounting plate 7 cooperates with the second fin 72, wherein the circuit board screw holes arranged on the second fin 72 are used for installing components such as circuit board components of the test module. The heat generated by the operation of the circuit board is transferred to the mounting plate 7, and the left guard plate 5 and the sealing plate 71 cooperate to provide heat dissipation assistance for the mounting plate 7.

[0055] In this embodiment, Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the left and right sides of the mounting plate 7 respectively contact the right side of the left guard plate 5 and the left side of the right guard plate 6, and a wire hole is fixed on the surface of the mounting plate 7. A hole plug that cooperates with the wire control is clamped on the surface of the mounting plate 7.

[0056] The mounting plate 7, the left guard plate 5 and the right guard plate 6 cooperate to complete the heat dissipation treatment of the mounting plate 7 by the liquid cooling module 1, wherein the mounting plate 7 and the partition plate 8 separate an independent module mounting area between the left guard plate 5 and the right guard plate 6, and the partition plate 8 is respectively spliced ​​with the first fin 61 and the second fin 72 through the docking groove 81. The heat generated by the circuit board is accumulated in the independent module mounting area. The heat dissipation treatment of the left guard plate 5 and the right guard plate 6 by the liquid cooling module 1 is realized to realize the cooling design of the equipment.

[0057] Specific operation process:

[0058] The mounting plate 7, the left guard plate 5 and the right guard plate 6 cooperate to complete the heat dissipation treatment of the mounting plate 7 by the liquid cooling module 1. The partition plate 8 is spliced ​​with the first fin 61 and the second fin 72 respectively through the docking groove 81. The heat generated by the circuit board is accumulated in the independent module installation area. The liquid cooling module 1, the connecting pipe 2 and the liquid cooling plate 3 cooperate to perform heat dissipation treatment on the left guard plate 5 and the right guard plate 6, thereby realizing the cooling design of the equipment.

[0059] The circuit board screw holes formed on the second fin 72 on the mounting plate 7 are used for installing components such as circuit boards of the test module. The mounting plate 7, the partition plate 8 and the right guard plate 6 cooperate to divide an independent module installation area between the left guard plate 5 and the right guard plate 6. At the same time, the mounting plate 7 cooperates with the second fin 72 to improve the overall structural strength of the mounting plate 7. There is no need to thicken the mounting plate 7 or add accessories to improve the stability of the mounting plate 7 after installing components such as circuit boards.

[0060] The independent module installation area inside the device can be divided into adjustable sizes by changing the position of the partition 8 on the second fin 72 of the mounting plate 7. The device cooperates with the liquid cooling module 1 to facilitate users to make a better design for the sealing of the EMC load box without affecting the heat dissipation of the EMC load box.

[0061] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. An EMC load box for automobile electromagnetic compatibility testing, characterized in that: Includes the following structure: A liquid cooling module (1), wherein a connecting pipe (2) is fixedly provided at a liquid path port of the liquid cooling module (1), and a liquid cooling plate (3) is fixedly provided at the other end of the connecting pipe (2); A frame (4), wherein a left guard plate (5) and a right guard plate (6) are detachably connected to the left and right sides of the frame (4); A mounting plate (7), the mounting plate (7) being symmetrically arranged front and rearward on the inner side of the frame (4); A partition (8), wherein a docking groove (81) is fixedly provided on the outer side of the partition (8).

2. The EMC load box for automobile electromagnetic compatibility testing according to claim 1, characterized in that: The left and right sides of the inner wall of the liquid cooling plate (3) respectively contact the outer sides of the left guard plate (5) and the right guard plate (6).

3. The EMC load box for automobile electromagnetic compatibility testing according to claim 1, characterized in that: The front and rear ends of the frame (4) are respectively clamped with a front panel (41) and a rear panel (42), and a power connection socket and a power switch are nested on the outer side of the rear panel (42).

4. The EMC load box for automobile electromagnetic compatibility testing according to claim 1, characterized in that: A first fin (61) is fixedly provided on the left side of the right guard plate (6), and the first fin (61) extends between opposite sides of the two mounting plates (7), and the left side of the first fin (61) cooperates with the docking groove (81).

5. The EMC load box for automobile electromagnetic compatibility testing according to claim 1, characterized in that: Second fins (72) are fixedly provided on opposite sides of the two mounting plates (7), the second fins (72) cooperate with the docking grooves (81), the opposite sides of the two mounting plates (7) are respectively clamped with the front and rear sides of the sealing plate (71), and circuit board screw holes are fixedly provided on the surface of the second fins (72) that abut against the left side of the sealing plate (71) and the right side of the left guard plate (5).

6. The EMC load box for automobile electromagnetic compatibility testing according to claim 1, characterized in that: The left and right sides of the mounting plate (7) respectively contact the right side of the left guard plate (5) and the left side of the right guard plate (6); a wire hole is fixedly provided on the surface of the mounting plate (7); and a hole plug cooperating with the wire control is clamped on the surface of the mounting plate (7).

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