Hybrid power box and automobile

Abstract

The utility model relates to a hybrid power box and an automobile, and relates to the technical field of hybrid power box design, the hybrid power box comprises a shell, a sensor assembly, a switching assembly and a connecting wire harness, and the shell is provided with a motor cavity and a gear shaft cavity which communicate with each other; the sensor assembly is located in the motor cavity and used for detecting signals of the motor. One end of the switching assembly extends into the gear shaft cavity, and the other end of the switching assembly extending out of the shell is used for being connected with an external low-voltage line speed; one end of the connecting wire harness is located in the gear shaft cavity and connected with the switching assembly, and the other end is located in the motor cavity and connected with the sensor assembly. Compared with an existing switching assembly which is located at the position of the shell and corresponds to the motor cavity, the switching assembly is located at the position of the shell and corresponds to the gear shaft cavity, so that most line segments of the connecting wire harness are located in the gear shaft cavity, clutter current, infected by the connecting wire harness, in the motor cavity is reduced, radiation of the connecting wire harness is reduced, and the service life of the connecting wire harness is prolonged. The radiation at the switching assembly is reduced, the radiation of an external low-voltage wire harness is reduced, and the influence on other components is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hybrid box design, and in particular to a hybrid box and a car. Background Art

[0002] For hybrid boxes of new energy vehicles, the packaging and production requirements of the controller are quite different from the assembly requirements of the motor and transmission shaft system housing. The electronic control needs to be produced on a separate production line. Many manufacturers design the controller as a relatively independent sub-assembly or even directly purchase the controller sub-assembly from outside.

[0003] The signals of the motor and the electronic control are connected by using an adapter. The adapter is located in the housing and connected to the sensor in the motor cavity through a connecting wire, so that the signals of the motor and the electronic control are transmitted to the adapter. Due to the voltage insulation requirements and manufacturing cost factors, the adapter body currently used is generally made of plastic material, which does not have the ability to isolate electromagnetic waves.

[0004] The connecting wires used to connect the sensor and the adapter are arranged in the motor cavity and exposed to the complex high-frequency electromagnetic environment of the motor, which makes it inevitable that the connecting wires will induce clutter currents. The connecting wires are transmitted to the external low-voltage wiring harness through the adapter plug-in, forming a radiation source and affecting other components. Utility Model Content

[0005] Based on this, a hybrid box and a car are provided, which improve the radiation problem at the hybrid box and reduce the impact on other components by setting the positions of the adapter components and the connecting harness.

[0006] To this end, in a first aspect, an embodiment of the present application provides a hybrid case, comprising: a shell, provided with a motor cavity and a gear shaft cavity that are interconnected; a sensor assembly, located in the motor cavity and used to detect the signal of the motor; an adapter assembly, arranged in the shell and having one end extending into the gear shaft cavity, and one end extending out of the shell for connecting to an external low-voltage line speed; and a connecting harness, one end of which is located in the gear shaft cavity and connected to the adapter assembly, and the other end of which is located in the motor cavity and connected to the sensor assembly.

[0007] In one embodiment, the sensor assembly includes a resolver sensor for detecting the position of the motor, the adapter assembly includes a resolver adapter, and the connecting harness includes a resolver connecting wire, one end of the resolver connecting wire is connected to the resolver sensor and the other end is connected to the resolver adapter.

[0008] In one embodiment, the sensor assembly includes a temperature sensor for detecting the temperature of the motor, the adapter assembly includes a temperature adapter, and the connecting harness includes a temperature connecting wire, one end of the temperature connecting wire is connected to the temperature sensor and the other end is connected to the temperature adapter.

[0009] In one of the embodiments, the temperature sensor is located on a side of the motor away from the gear shaft cavity, and the temperature connecting line is connected to the temperature sensor and the temperature adapter through an oil return channel of the housing.

[0010] In one embodiment, the temperature connection line and the resolver connection line are intertwined with each other.

[0011] In one of the embodiments, it further includes a first shielding layer, wherein the first shielding layer wraps the connecting wire harness.

[0012] In one embodiment, the first shielding layer is a metal mesh.

[0013] In one embodiment, the rotational converter is provided with a first cover; and / or the temperature converter is provided with a second cover.

[0014] In one of the embodiments, it further includes a high-voltage terminal block located on the shell, one end of the high-voltage terminal block extends into the motor cavity and is connected to the motor, and the high-voltage terminal block is provided with a second shielding layer, and the second shielding layer wraps the high-voltage terminal block.

[0015] In a second aspect, an embodiment of the present application provides a car, comprising a hybrid box as described in any one of the above items.

[0016] According to the hybrid box and automobile provided by the embodiment of the present application, the hybrid box includes a housing, a sensor assembly, an adapter assembly and a connecting harness, the housing is provided with a motor cavity and a gear shaft cavity that are interconnected; the sensor assembly is located in the motor cavity and is used to detect the signal of the motor; the adapter assembly is arranged in the housing and one end extends into the gear shaft cavity, and the other end extending out of the housing is used to connect with an external low-voltage line speed; one end of the connecting harness is located in the gear shaft cavity and connected to the adapter assembly, and the other end is located in the motor cavity and connected to the sensor assembly. The present application changes the position of the adapter assembly. Compared with the existing adapter assembly that is located at the housing and corresponds to the motor cavity, the adapter assembly of the present application is located at the housing and corresponds to the gear shaft cavity, so that most of the line segments of the connecting harness are located in the gear shaft cavity, reducing the connection harness from infecting the motor cavity with clutter current, thereby reducing the radiation of the connecting harness, thereby reducing the radiation at the adapter assembly, reducing the radiation of the external low-voltage harness, and thereby reducing the impact on other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a hybrid box provided in an embodiment of the present application is shown;

[0018] Figure 2 A partial schematic diagram of a hybrid box provided in an embodiment of the present application is shown;

[0019] Figure 3 A schematic structural diagram of a high-voltage wiring socket provided in an embodiment of the present application is shown.

[0020] Description of reference numerals:

[0021] 1. Housing; 11. Motor cavity; 12. Gear shaft cavity; 2. Adapter assembly; 21. Rotary transformer adapter; 22. Temperature adapter; 3. Connecting wire harness; 31. Rotary transformer connecting wire; 32. Temperature connecting wire; 4. Motor; 5. High-voltage terminal block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] The connecting wires used to connect the sensor and the adapter are arranged in the motor cavity and exposed to the complex high-frequency electromagnetic environment of the motor, which makes it inevitable that the connecting wires will induce clutter currents. The connecting wires are transmitted to the external low-voltage wiring harness through the adapter plug-in, forming a radiation source and affecting other components.

[0027] To solve the above problems, refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a hybrid box provided in an embodiment of the present application is shown. Figure 2 A partial schematic diagram of a hybrid box provided in an embodiment of the present application is shown.

[0028] The present application provides a hybrid case, which includes a shell 1, a sensor assembly (not shown in the figure), an adapter assembly 2 and a connecting harness 3. The shell 1 is provided with a motor cavity 11 and a gear shaft cavity 12 which are interconnected; the sensor assembly is located in the motor cavity 11 and is used to detect the signal of the motor 4; the adapter assembly 2 is arranged in the shell 1 and one end extends into the gear shaft cavity 12, and the other end extending out of the shell 1 is used to be connected to an external low-voltage line speed (not shown in the figure); one end of the connecting harness 3 is located in the gear shaft cavity 12 and is connected to the adapter assembly 2, and the other end is located in the motor cavity 11 and is connected to the sensor assembly.

[0029] It should be understood that the hybrid case includes a housing 1 and a sensor assembly, the housing 1 is provided with a motor cavity 11 and a gear shaft cavity 12, the motor cavity 11 and the gear shaft cavity 12 are connected to each other, the motor 4 is located in the motor cavity 11, the transmission gear and the transmission shaft are located in the gear shaft cavity 12, and the motor cavity 11 and the gear shaft cavity 12 are arranged along the axial direction of the motor 4. The sensor assembly is arranged in the motor cavity 11 and connected to the housing 1, the sensor assembly may include one sensor or at least two sensors, and the sensor assembly may be used to detect various signals of the motor 4, such as the resolver signal, temperature signal, etc. of the motor 4, which is not limited in this application.

[0030] The hybrid case also includes an adapter assembly 2 and a connecting harness 3. The adapter assembly 2 may include one adapter or at least two adapters, which is not limited in this application, but the number of adapters may correspond to the type or number of sensors. The adapter assembly 2 is arranged at the housing 1 and corresponds to the gear shaft cavity 12 of the housing 1. One end of the adapter assembly 2 extends into the gear shaft cavity 12 and is connected to one end of the connecting harness 3. The other end of the connecting harness 3 extends into the motor cavity 11 and is connected to the sensor assembly, so as to transmit the signal of the sensor assembly to the adapter assembly 2 through the connecting harness 3. The other end of the adapter assembly 2 extends out of the housing 1 and is used to connect to an external low-voltage harness, thereby transmitting the signal at the adapter assembly 2.

[0031] The present application changes the position of the adapter component 2. Compared with the existing adapter component 2 which is located at the housing 1 and corresponds to the motor cavity 11, the adapter component 2 of the present application is located at the housing 1 and corresponds to the gear shaft cavity 12, so that most of the wire segments of the connecting wire harness 3 are located in the gear shaft cavity 12, thereby reducing the infection of the connecting wire harness 3 with the clutter current in the motor cavity 11, thereby reducing the radiation of the connecting wire harness 3, thereby reducing the radiation at the adapter component 2, reducing the radiation of the external low-voltage wire harness, and thereby reducing the impact on other components.

[0032] In some optional embodiments, the sensor assembly includes a resolver sensor (not shown in the figure) for detecting the position of the motor 4, the adapter assembly 2 includes a resolver adapter 21, and the connecting harness 3 includes a resolver connecting wire 31, one end of the resolver connecting wire 31 is connected to the resolver sensor and the other end is connected to the resolver adapter 21.

[0033] The sensor assembly includes a resolver sensor, which is located in the motor cavity 11 and connected to the housing 1. The resolver sensor is used to detect the resolver position of the motor 4. The adapter assembly 2 includes a resolver adapter 21, which is an adapter plug-in. The resolver adapter 21 is located at the housing 1 and one end of the resolver adapter 21 extends into the gear shaft cavity 12. The other end of the resolver adapter 21 extends out of the housing 1 and is used to connect to an external low-voltage wiring harness. The connecting harness 3 includes a resolver connecting wire 31, one end of the resolver connecting wire 31 extends into the motor cavity 11 and is connected to the resolver sensor, and the other end of the resolver connecting wire 31 extends into the gear shaft cavity 12 and is connected to the resolver adapter 21, thereby transmitting the resolver position signal of the motor 4 to the resolver adapter 21.

[0034] There are at least two motors 4 in the motor cavity 11, and the number of resolver sensors corresponds to the number of motors 4, so as to detect the resolver position of each motor 4. The number of resolver connecting wires 31 corresponds to the number of resolver sensors, and one resolver adapter 21 is provided, and at least two resolver adapters 21 are connected to the resolver adapter 21 at one end away from the resolver sensor. Thus, the number of resolver adapters 21 is saved.

[0035] In some optional embodiments, the sensor assembly includes a temperature sensor for detecting the temperature of the motor 4, the adapter assembly 2 includes a temperature adapter 22, and the connecting harness 3 includes a temperature connecting wire 32, one end of the temperature connecting wire 32 is connected to the temperature sensor and the other end is connected to the temperature adapter 22.

[0036] The sensor assembly includes a temperature sensor (not shown in the figure), which is located in the motor cavity 11 and connected to the housing 1. The temperature sensor is used to detect the temperature of the motor 4. The adapter assembly 2 includes a temperature adapter 22, which is an adapter plug-in. The temperature adapter 22 is located at the housing 1 and one end of the temperature adapter 22 extends into the gear shaft cavity 12. The other end of the temperature adapter 22 extends out of the housing 1 and is used to connect to an external low-voltage wiring harness. The connecting harness 3 includes a temperature connecting wire 32, one end of the temperature connecting wire 32 extends into the motor cavity 11 and is connected to the temperature sensor, and the other end of the temperature connecting wire 32 extends into the gear shaft cavity 12 and is connected to the temperature adapter 22, so as to transmit the temperature signal of the motor 4 to the temperature adapter 22.

[0037] In some optional embodiments, the temperature sensor is located on the side of the motor 4 away from the gear shaft cavity 12, and the temperature connecting line 32 is connected to the temperature sensor and the temperature adapter 22 through the oil return channel of the housing 1. The housing 1 is provided with an oil return channel, and cooling oil flows through the oil return channel to cool the motor. The temperature connecting line 32 is used to connect one end of the temperature sensor and passes through the oil return channel. Since the opening of the oil return channel is relatively large, the passage of the temperature connecting line 32 through the oil return channel will not affect the oil return of the motor 4. However, if it does not pass through the oil return channel, additional holes need to be punched for the temperature connecting line 32 to pass through. The setting of the temperature connecting line 32 passing through the oil return channel in this application reduces the operation of additional punching, reduces the manufacturing cost, and also reduces the wire length of the temperature connecting line 32.

[0038] In some optional embodiments, the temperature connection line 32 and the resolver connection line 31 are intertwined. Thus, the temperature connection line 32 and the resolver connection line 31 are connected, reducing the space occupied by the temperature connection line 32 and the resolver connection line 31 being separately set, and also avoiding the temperature connection line 32 and the resolver connection line 31 from being tangled. Compared with additionally setting a binding component to connect the temperature connection line 32 and the resolver connection line 31 together, the setting that the temperature connection line 32 and the resolver connection line 31 are intertwined reduces the cost of the binding component.

[0039] In some optional embodiments, a first shielding layer (not shown in the figure) is further included, and the first shielding layer wraps the connecting harness 3. The first shielding layer is made of metal, such as iron, copper, etc. The first shielding layer can be in a cylindrical structure, so as to wrap the connecting harness 3, thereby shielding the clutter current in the motor cavity 11, reducing the clutter current at the connecting harness 3, and further reducing the radiation of the connecting harness 3, thereby reducing the radiation at the adapter assembly 2, reducing the radiation of the external low-voltage harness, and further reducing the impact on other components.

[0040] At the same time, since the temperature connecting wire 32 and the resolver connecting wire 31 are intertwined, a first shielding layer can be used to wrap and cover the connecting wire harness 3, thereby reducing the number of first shielding layers used and reducing costs.

[0041] In some optional embodiments, the first shielding layer is a metal mesh. The present application does not set the mesh shape of the metal mesh, which can be circular holes or diamond holes, and the setting of the metal mesh can reduce the material used for the first shielding layer and reduce the material cost of the first shielding layer.

[0042] In some optional embodiments, the rotary adapter 21 is provided with a first cover (not shown in the figure), and the first cover is detachably connected to the rotary adapter 21, and can be connected by screws or rotationally, and this application does not limit it. If the rotary adapter 21 is not connected to an external low-voltage wiring harness, the socket of the rotary adapter 21 can be covered by the first cover to prevent foreign matter from entering the socket of the rotary adapter 21. When the rotary adapter 21 needs to be connected to an external low-voltage wiring harness, the first cover is removed.

[0043] In some optional embodiments, the temperature adapter 22 is provided with a second cover (not shown in the figure). The second cover is detachably connected to the temperature adapter 22, and can be connected by screws or rotationally, which is not limited by the present application. If the temperature adapter 22 is not connected to an external low-voltage wiring harness, the socket of the temperature adapter 22 can be covered by the second cover to prevent foreign matter from entering the socket of the temperature adapter 22. When the temperature adapter 22 needs to be connected to an external low-voltage wiring harness, the second cover is removed.

[0044] Reference Figure 1-Figure 3 , Figure 3 A schematic structural diagram of a high-voltage wiring socket provided in an embodiment of the present application is shown.

[0045] In some optional embodiments, a high-voltage terminal block 5 is further included in the housing 1, one end of the high-voltage terminal block 5 extends into the motor cavity 11 and is connected to the motor 4, and the surface of the high-voltage terminal block 5 is covered with a second shielding layer (not shown in the figure). One end of the high-voltage terminal block 5 extends into the motor cavity 11 and is connected to the motor 4, so that the motor 4 is powered, and the second shielding layer wraps the high-voltage terminal block 5, so that the high-voltage terminal block 5 shields the clutter current in the motor cavity 11, reduces the clutter current at the high-voltage terminal block 5, further reduces the radiation of the high-voltage terminal block 5, and then reduces the impact on other components.

[0046] The present application moves the adapter assembly 2 to a position corresponding to the gear shaft cavity 12 of the housing 1 so that part of the connecting harness 3 extends into the gear shaft cavity 12, thereby reducing the radiation of the connecting harness 3. At the same time, a first shielding layer is provided at the connecting harness 3, and a second shielding layer is provided at the high-voltage terminal block 5, thereby reducing the radiation of the hybrid box and making the hybrid box meet various technical requirements related to EMC (electromagnetic compatibility) of the national standard for hybrid boxes.

[0047] Reference Figure 1-Figure 2 The present application also includes an automobile, the automobile includes a hybrid case as described in any of the above items, the hybrid case includes a shell 1, a sensor assembly, an adapter assembly 2 and a connecting harness 3, the shell 1 is provided with a motor cavity 11 and a gear shaft cavity 12 which are interconnected; the sensor assembly is located in the motor cavity 11 and is used to detect the signal of the motor 4; the adapter assembly 2 is arranged in the shell 1 and one end extends into the gear shaft cavity 12, and the end extending out of the shell 1 is used to be connected to the low-voltage line speed; one end of the connecting harness 3 is located in the gear shaft cavity 12 and is connected to the adapter assembly 2, and the other end is located in the motor cavity 11 and is connected to the sensor assembly.

[0048] Compared with the existing adapter assembly 2 which is located at the housing 1 and corresponds to the motor cavity 11, the adapter assembly 2 of the present application is located at the housing 1 and corresponds to the gear shaft cavity 12, so that most of the wire segments of the connecting harness 3 are located in the gear shaft cavity 12, thereby reducing the infection of the connecting harness 3 with the clutter current in the motor cavity 11, thereby reducing the radiation of the connecting harness 3, thereby reducing the radiation at the adapter assembly 2, reducing the radiation of the external low-voltage harness, and thereby reducing the impact on other components.

[0049] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A hybrid box, characterized in that: include: The housing (1) is provided with a motor cavity (11) and a gear shaft cavity (12) which are communicated with each other; A sensor assembly, located in the motor cavity (11) and used to detect a signal from the motor (4); A switching assembly (2), which is arranged on the housing (1) and has one end extending into the gear shaft cavity (12), and one end extending out of the housing (1) for connection with an external low-pressure line speed; and A connecting wire harness (3) has one end located in the gear shaft cavity (12) and connected to the adapter assembly (2), and the other end located in the motor cavity (11) and connected to the sensor assembly.

2. The hybrid box according to claim 1, characterized in that: The sensor assembly comprises a resolver sensor for detecting the position of the motor (4), the adapter assembly (2) comprises a resolver adapter (21), the connecting wire harness (3) comprises a resolver connecting wire (31), one end of the resolver connecting wire (31) is connected to the resolver sensor and the other end is connected to the resolver adapter (21).

3. The hybrid box according to claim 2, characterized in that: The sensor assembly comprises a temperature sensor for detecting the temperature of the motor (4), the adapter assembly (2) comprises a temperature adapter (22), the connecting wire harness (3) comprises a temperature connecting wire (32), one end of the temperature connecting wire (32) is connected to the temperature sensor and the other end is connected to the temperature adapter (22).

4. The hybrid box according to claim 3, characterized in that: The temperature sensor is located on a side of the motor (4) away from the gear shaft cavity (12), and the temperature connecting line (32) is connected to the temperature sensor and the temperature adapter (22) through the oil return channel of the housing (1).

5. The hybrid box according to claim 3, characterized in that: The temperature connection line (32) and the resolver connection line (31) are intertwined with each other.

6. The hybrid case according to claim 1, characterized in that: It also comprises a first shielding layer, wherein the first shielding layer wraps the connecting wire harness (3).

7. The hybrid case according to claim 6, characterized in that: The first shielding layer is a metal mesh.

8. The hybrid case according to claim 3, characterized in that: The rotational conversion component (21) is provided with a first cover body; and / or the temperature conversion component (22) is provided with a second cover body.

9. The hybrid case according to claim 1, characterized in that: It also includes a high-voltage terminal block (5) located on the shell (1), one end of the high-voltage terminal block (5) extends into the motor cavity (11) and is connected to the motor (4), and the high-voltage terminal block (5) is provided with a second shielding layer, and the second shielding layer wraps the high-voltage terminal block (5).

10. An automobile, characterized in that: Comprising the hybrid box as described in any one of claims 1-9.

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