Relay and high-voltage control box

Abstract

The utility model provides a relay and a high-voltage control box, and belongs to the relay technology field, the relay comprises a relay main body and a high-voltage connecting end, the high-voltage connecting end is arranged on a first end face of the relay main body, the high-voltage connecting end comprises a connecting plate, and the connecting plate is suitable for being connected in a high-voltage loop through welding. The connecting plate is arranged to replace a traditional bolt, the connecting plate and the high-voltage loop are connected in a welding mode, the welding connection strength is high, the stability is better, parts such as bolts and nuts are not needed in the connecting process, parts are saved, the size is reduced, the weight of the structure is reduced to a certain degree, and the cost is reduced to a certain degree. And the mounting efficiency is further improved through a welding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, and particularly relates to a relay and a high-voltage control box. Background Art

[0002] The high-voltage control box (BDU) is mainly used to accommodate and protect electrical components in the high-voltage system, such as high-voltage switches, protection devices, etc. The relay is one of the important electrical components in the high-voltage control box and is used for controlling electrical signals in the circuit.

[0003] In traditional relays, the relay is generally connected to the external high-voltage circuit through bolts. The connection method by bolts has low strength and increases the occupied space of the connecting structural parts and the connection points. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present utility model is to overcome the defects that in the prior art, the relay is generally connected to the external high-voltage circuit through bolts, the connection method by bolts has low strength, and it increases the occupied space of the connecting structural parts and the connection points, so as to provide a relay and a high-voltage control box.

[0005] To solve the above technical problem, the present utility model provides a relay, including:

[0006] A relay body;

[0007] A high-voltage connection end, which is arranged on the first end face of the relay body. The high-voltage connection end includes a connecting plate, and the connecting plate is suitable for being connected to the high-voltage circuit by welding.

[0008] Optionally, the high-voltage connection end further includes a limiting boss, and the limiting boss is arranged on the connecting plate.

[0009] Optionally, the limiting boss is connected to the connecting plate by welding.

[0010] Optionally, both the connecting plate and the limiting boss are made of conductive materials.

[0011] Optionally, the thickness of the connecting plate is 1 mm - 3 mm;

[0012] And / or, the height of the limiting boss is 0.5 mm - 4 mm, and the width is 1 mm - 3 mm.

[0013] Optionally, the high-voltage connection end further includes at least one sampling terminal, and the sampling terminal is arranged on the connecting plate. [[ID=X]]

[0014] Optionally, there are at least two high-voltage connection ends, and an insulating isolation plate is arranged between adjacent two high-voltage connection ends.

[0015] Optionally, it further includes a low-voltage connection terminal, which is arranged on the second end face of the relay body and is adapted to be connected to a low-voltage circuit.

[0016] Optionally, it further includes a connecting portion, which is arranged on the relay body.

[0017] The present utility model also provides a high-voltage control box, which includes the relay described in any one of the above.

[0018] The technical solution of the present utility model has the following advantages:

[0019] The relay provided by the present utility model includes a relay body and a high-voltage connection terminal. The high-voltage connection terminal is arranged on the first end face of the relay body, and the high-voltage connection terminal includes a connecting plate, and the connecting plate is adapted to be connected to the high-voltage circuit by welding.

[0020] By providing a connecting plate to replace the traditional bolt, the connecting plate is connected to the high-voltage circuit by welding. The welding connection has higher strength and better stability, and the connection process does not require parts such as bolts and nuts, saving components, reducing volume, reducing the weight of the structure and cost to a certain extent, and further improving the installation efficiency by welding. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of an implementation manner of the relay provided in Embodiment 1 of the present utility model.

[0023] Explanation of the Reference Numerals in the Drawings

[0024] 1. Relay body; 2. High-voltage connection terminal; 3. Connecting plate; 4. Limiting boss; 5. Sampling terminal; 6. Insulating isolation plate; 7. Low-voltage connection terminal; 8. Connecting portion. Specific Embodiments

[0025] The following will clearly and completely describe the technical solutions of the present utility model with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Embodiment 1

[0030] The relay provided in this embodiment is used in the high-voltage control box of a new energy vehicle to control electrical signals in the circuit.

[0031] As Figure 1 shown, a specific implementation manner of the relay provided in this embodiment includes a relay main body 1 and a high-voltage connection end 2. The high-voltage connection end 2 is provided on the first end face of the relay main body 1. The high-voltage connection end 2 includes a connecting plate 3, and the connecting plate 3 is adapted to be connected to the high-voltage circuit by welding.

[0032] By providing the connecting plate 3 to replace the traditional bolt and connecting the connecting plate 3 to the high-voltage circuit by welding, the welding connection has higher strength and better stability. Moreover, the connection process does not require parts such as bolts and nuts, saving components, reducing the volume, and to a certain extent, reducing the weight of the structure and the cost. The installation efficiency is further improved by the welding method.

[0033] Specifically, the relay body 1 includes a housing and components such as contacts, coils, and iron cores disposed inside the housing. The internal structure of the relay body 1 is not specifically limited and is the internal structure of a conventional relay. The connecting plate 3 and the relay body 1 can be connected by welding, for example, by brazing. The connecting plate 3 is connected to the contacts inside the relay body 1.

[0034] In one embodiment of the connecting plate 3, one end of the connecting plate 3 is arc-shaped to avoid the connecting bolts on the relay. The connecting plate 3 can be connected to only one high-voltage circuit or can be connected to multiple high-voltage circuits at the same time. The connecting plate 3 does not have the spatial limitations similar to those during terminal connection.

[0035] As Figure 1 shown, for the relay provided in this embodiment, the high-voltage connection end 2 further includes a limiting boss 4. The limiting boss 4 is disposed on the connecting plate 3. The setting of the limiting boss 4 plays a reference role, facilitating more accurate and rapid welding between the external workpiece to be welded and the connecting plate 3.

[0036] Specifically, when the high-voltage connection end 2 is welded to an external workpiece to be welded, the workpiece to be welded can be welded only to the connecting plate 3, or can be welded only to the limiting boss 4. Additionally, the workpiece to be welded can also be welded to both the connecting plate 3 and the limiting boss 4 simultaneously.

[0037] In one specific embodiment of the limiting boss 4, the limiting boss 4 is a rectangular boss structure, which is disposed at the edge of the connecting plate 3 and does not affect the welding space between the workpiece to be welded and the connecting plate 3.

[0038] For the relay provided in this embodiment, the limiting boss 4 is connected to the connecting plate 3 by welding. Specifically, butt welding or penetration welding can be used between the limiting boss 4 and the connecting plate 3.

[0039] Additionally, as an alternative embodiment, the limiting boss 4 and the connecting plate 3 are integrally formed structures.

[0040] For the relay provided in this embodiment, both the connecting plate 3 and the limiting boss 4 are made of conductive materials, facilitating electrical connection to the external high-voltage circuit. Specifically, the connecting plate 3 and the limiting boss 4 can be copper bars or aluminum bars, preferably aluminum bars, as the cost of aluminum bars is low.

[0041] For the relay provided in this embodiment, the thickness of the connecting plate 3 is 1 mm - 3 mm, preferably 2 mm, to ensure a certain thickness and avoid welding through the connecting plate 3 during the welding process. However, if the connecting plate 3 is too thick, it will increase the weight and cost.

[0042] For the relay provided in this embodiment, the height of the limiting boss 4 is 0.5 mm - 4 mm, the width is 1 mm - 3 mm, preferably the height is 2 mm and the width is 2 mm.

[0043] As Figure 1 shown, for the relay provided in this embodiment, the high-voltage connection terminal 2 further includes at least one sampling terminal 5, and the sampling terminal 5 is disposed on the connection plate 3. The sampling terminal 5 is used to connect with an external sampling wire harness, and can perform sampling of current or voltage.

[0044] Specifically, the sampling terminal 5 can be integrated on the connection plate 3 by welding. The sampling terminal 5 does not need to be separately assembled, reducing the cost. The sampling terminal 5 is led out from the edge of the connection plate 3, which does not affect the welding space between the connection plate 3 and the weldment. Multiple sampling terminals 5 can be disposed on each connection plate 3, and there is no need to separately set the high-voltage connection terminal 2 for each sampling point.

[0045] As Figure 1 shown, for the relay provided in this embodiment, there are at least two high-voltage connection terminals 2, and an insulating isolation plate 6 is disposed between adjacent two high-voltage connection terminals 2. The setting of the insulating isolation plate 6 ensures that adjacent high-voltage connection terminals 2 do not interfere with each other. The material of the insulating isolation plate 6 is not specifically limited, and insulating materials such as plastics and rubbers can be used.

[0046] When the relay is provided with both the insulating isolation plate 6 and the limiting boss 4, the limiting boss 4 can be disposed at one end of the high-voltage connection terminal 2 close to the insulating isolation plate 6.

[0047] A specific implementation manner of the insulating isolation plate 6 is a U-shaped structure. The U-shaped structure is clamped between adjacent two high-voltage connection terminals 2 of the relay, and the protection and isolation range is larger and the effect is better.

[0048] The insulating isolation plate 6 and the housing of the relay body 1 can be an integrally injection-molded structure. The structural design is simple, enhancing the structural performance, saving the assembly process, and further improving the efficiency.

[0049] Specifically, one of the two high-voltage connection terminals 2 is a positive high-voltage connection terminal, and the other is a negative high-voltage connection terminal. The positive high-voltage connection terminal and the negative high-voltage connection terminal are connected in a high-voltage circuit to connect the high-voltage circuit. The positive high-voltage connection terminal and the negative high-voltage connection terminal are a group, and one or more groups can be provided in the relay.

[0050] As Figure 1 shown, the relay provided in this embodiment further includes a low-voltage connection terminal 7. The low-voltage connection terminal 7 is disposed on the second end face of the relay body 1, and the low-voltage connection terminal 7 is adapted to be connected to a low-voltage circuit.

[0051] Specifically, the low-voltage connection terminal 7 has two pins for connecting to a low-voltage circuit.

[0052] The first end face and the second end face of the relay body 1 can be two opposite faces or two adjacent faces.

[0053] As Figure 1 shown, the relay provided in this embodiment further includes a connecting portion 8. The connecting portion 8 is provided on the relay body 1. The connecting portion 8 is used for installing the relay. Specifically, there are at least two connecting portions 8, which are respectively provided on different end faces of the relay body 1; the connecting portion 8 is of a plate structure, and through holes are provided thereon, and the relay is fixed by bolts arranged in the through holes.

[0054] Embodiment 2

[0055] The high-voltage control box provided in this embodiment includes the relay described in any one of Embodiment 1.

[0056] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A relay, characterized in that: include: Relay body (1); A high-voltage connection end (2) is arranged on the first end face of the relay body (1), the high-voltage connection end (2) includes a connection plate (3), and the connection plate (3) is suitable for being connected to a high-voltage circuit by welding; the high-voltage connection end (2) also includes a limiting boss (4), the limiting boss (4) is arranged on the connection plate (3), and the thickness of the connection plate (3) is 1mm-3mm; and / or the limiting boss (4) has a height of 0.5mm-4mm and a width of 1mm-3mm.

2. The relay according to claim 1, wherein: The limiting boss (4) is connected to the connecting plate (3) by welding.

3. The relay according to claim 1, wherein: The connecting plate (3) and the limiting boss (4) are both made of conductive materials.

4. The relay according to claim 1, wherein: The high-voltage connection end (2) further comprises at least one sampling terminal (5), and the sampling terminal (5) is arranged on the connection plate (3).

5. The relay according to claim 1, wherein: There are at least two high-voltage connection terminals (2), and an insulating isolation plate (6) is provided between two adjacent high-voltage connection terminals (2).

6. The relay according to claim 1, wherein: It also includes a low-voltage connection end (7), which is arranged on the second end face of the relay body (1) and is suitable for connecting to a low-voltage circuit.

7. The relay according to claim 1, wherein: It also includes a connecting portion (8), which is provided on the relay body (1).

8. A high voltage control box, characterized in that: The relay comprises the relay according to any one of claims 1 to 7.

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