Anti-condensation structure of motor

Abstract

The utility model relates to a motor anti-condensation structure, which comprises a motor shell, a junction box, a blocking piece and a blocking cover, the junction box is arranged at one side of the motor shell, a motor cavity for accommodating a motor assembly is formed in the motor shell, a wiring cavity is formed in the junction box, the motor cavity is communicated with the wiring cavity, the wiring cavity is connected with a wiring terminal, and the blocking cover is arranged on the wiring terminal. The motor assembly is connected with the wiring terminal through a transition wire, the blocking piece is installed at the joint of the motor cavity and the wiring cavity, and a wire hole is formed in the blocking piece; the blocking cover is arranged in the wiring cavity and covers one side, far away from the motor cavity, of the blocking piece; the wiring cavity and the motor cavity are separated by the plug, the air volume in the wiring cavity can be effectively reduced by the plug cover, so that the content of hot air flow is reduced, through the arrangement of the wire holes, the connection and placement of transition wires are effectively ensured, meanwhile, the internal space of the wiring cavity is reduced, gas convection is further reduced, and condensation is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile motors and related component structures, in particular to a motor anti-condensation structure. Background Art

[0002] The motor is connected to external electrical components through a junction box. When it starts to operate at low temperatures, the temperature inside the motor rises, causing hot air to move into the junction box. Since the inside of the junction box is far away from the inside of the motor and is affected by the air when the vehicle is running, the temperature is relatively low, causing the hot air to condense into water when it encounters cold, forming condensation. The condensation flows back into the motor, which not only causes rust and electrochemical corrosion of the metal parts and electrical circuits inside the motor, but also reduces the insulation resistance of the motor, thereby affecting the normal operation of the motor. Therefore, it is necessary to take measures to prevent the formation of condensation. Utility Model Content

[0003] Based on the above description, the present invention provides a motor anti-condensation structure to solve the technical problem in the prior art that the operation of the motor causes hot air to cool down on the junction box to form condensation.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A motor anti-condensation structure includes a motor housing, a junction box, a blocking piece and a blocking cover, the junction box is located on one side of the motor housing, a motor cavity for accommodating a motor assembly is formed inside the motor housing, a wiring cavity is formed inside the junction box, the motor cavity and the wiring cavity are connected, a wiring terminal is connected to the wiring cavity, the motor assembly and the wiring terminal are connected by a transition line, the blocking piece is installed at the connection between the motor cavity and the wiring cavity, and a wire hole for the transition line to pass through is formed on the blocking piece; the blocking cover is arranged in the wiring cavity and covers the side of the blocking piece away from the motor cavity.

[0006] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0007] The motor anti-condensation structure provided by the present invention uses blockage to separate the wiring cavity and the motor cavity to reduce air circulation. The use of the blocking cover can effectively reduce the air volume in the wiring cavity, thereby reducing the hot air flow content. The setting of the wire hole effectively ensures the connection and placement of the transition line, while reducing the internal space of the wiring cavity, so that the gas convection is further reduced, effectively preventing the generation of condensation.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the junction box includes a junction box body, a junction box cover and a junction box side cover. The junction box body is integrally formed with the motor housing. A first opening is formed on one side of the junction box body. The junction box side cover is installed on the first opening. Insulation cotton is provided on the inner wall of the junction box side cover.

[0010] Furthermore, at least two first positioning columns are provided inside the junction box, and the ends of the first positioning columns are provided with detachable first fastening bolts. The blocking member forms a first positioning hole corresponding to the positioning column, and the first fastening bolts fix the blocking member inside the junction box.

[0011] Furthermore, the first positioning post is arranged toward the first opening, and the axis of the first positioning hole and the axis of the wire hole are perpendicular to each other.

[0012] Furthermore, a second opening is formed at one end of the junction box away from the motor housing, a junction box cover is installed at the second opening, and heat insulation cotton is provided on the inner wall of the junction box cover.

[0013] Furthermore, at least two second positioning columns are provided inside the junction box, and the ends of the second positioning columns are detachably connected to second fastening bolts. The blocking cover forms a second positioning hole corresponding to the second positioning column, and the second fastening bolts fix the blocking cover inside the junction box.

[0014] Furthermore, the second positioning post is arranged toward the second opening, and the axis of the second positioning hole is parallel to the axis of the wire hole.

[0015] Furthermore, two branching rods are formed on one side of the blocking cover close to the motor cavity, and the two branching rods are respectively located between two adjacent phases of the three-phase wiring harness of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the internal structure of a motor anti-condensation structure provided in an embodiment of the present application;

[0017] Figure 2 This is a schematic structural diagram of a blocking member according to an embodiment of the present application;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure after hiding the blocking parts;

[0019] Figure 4 for Figure 1 Schematic diagram from another perspective after hiding the blocking member and the blocking cover;

[0020] Figure 5 This is a schematic diagram of the external structure of a motor anti-condensation structure provided in an embodiment of the present application;

[0021] Figure 6 This is a schematic structural diagram of the blocking cover according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0024] It will be understood that spatial relational terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under the other elements" or "under it" or "below it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" can include both upper and lower orientations. In addition, the device can also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0025] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0026] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0027] like Figure 1-6As shown, an embodiment of the present application provides a motor anti-condensation structure, which includes a motor housing 10 , a junction box 20 , a blocking member 30 and a blocking cover 40 .

[0028] The junction box 20 is located on one side of the motor housing 10 . In this embodiment, the motor housing 10 is a hollow cylindrical structure as a whole, and the junction box 20 is arranged on the radial side of the cylinder where the motor housing 10 is located.

[0029] A motor cavity 1a for accommodating a motor assembly 11 is formed inside the motor housing 10, and a wiring cavity 2a is formed inside the junction box 20. The motor cavity 1a and the wiring cavity 2a are communicated, and a wiring terminal 21 is connected to the wiring cavity 20. The motor assembly 11 is connected to the wiring terminal 21 via a transition line 22.

[0030] The blocking piece 30 is installed at the connection between the motor cavity 1a and the wiring cavity 2a. A wire hole 31 for the transition line 22 to pass through is formed on the blocking piece 30. In this embodiment, in order to facilitate the setting of the transition line 22, the wire hole 31 is a groove structure provided on one side of the blocking piece 30 and passing through both ends thereof. Preferably, the groove has a relatively narrow opening and widens at the end of the opening to form a through hole passing through the length direction of the groove. The blocking piece 30 can be made of silicone or rubber structure, and the transition line 22 is squeezed into the wire hole 31 by extrusion.

[0031] Preferably, for a three-phase motor, the transition line is also three-phase according to the number of phases, so there are three transition lines 22 , and correspondingly, three line holes 31 are formed on the blocking member 30 .

[0032] The blocking cover 40 is disposed in the wiring cavity 2 a and covers a side of the blocking member 30 away from the motor cavity 1 a .

[0033] The motor anti-condensation structure provided by the present invention utilizes a blocking member 30 to separate the wiring cavity 2a from the motor cavity 1a, thereby reducing air circulation. The use of the blocking cover 40 can effectively reduce the air volume in the wiring cavity 2a, thereby reducing the hot air flow content. The setting of the wire hole 31 effectively ensures the connection and placement of the transition line 22, while further reducing the internal space of the wiring cavity 2a, so that gas convection is further reduced, and the generation of condensation is effectively prevented.

[0034] Among them, the junction box 20 includes a junction box body 210, a junction box cover 220 and a junction box side cover 230. The junction box body 210 is integrally formed with the motor housing 10. A first opening 201 is formed on one side of the junction box body 210. The first opening 201 is installed with the junction box side cover 230. Insulation cotton is set on the inner wall of the junction box side cover 230.

[0035] Preferably, the blocking piece 30 in the present application adopts the following installation structure: at least two first positioning columns 23 are arranged inside the junction box 20, and the ends of the first positioning columns 23 are provided with detachable first fastening bolts 231, and the blocking piece 30 forms a first positioning hole 301 corresponding to the positioning column 23, and the first fastening bolt 231 fixes the blocking piece 30 inside the junction box 20.

[0036] The first positioning post 23 is disposed toward the first opening 201 , and the axis of the first positioning hole 301 and the axis of the wire hole 31 are perpendicular to each other.

[0037] Preferably, a second opening 202 is formed at one end of the junction box body 210 away from the motor housing 10 , and a junction box cover 220 is installed in the second opening 202 . The inner wall of the junction box cover 220 is provided with heat insulation cotton.

[0038] The provision of the heat insulating cotton can effectively prevent the hot air flow from directly contacting the junction box 20, thereby preventing condensation.

[0039] Among them, the installation method of the blocking cover 40 is as follows: at least two second positioning columns 24 are set inside the junction box 20, and the ends of the second positioning columns 24 are detachably connected to the second fastening bolts 241. The blocking cover 40 forms a second positioning hole 401 corresponding to the second positioning column 24, and the second fastening bolts 241 fix the blocking cover 40 inside the junction box 20.

[0040] The second positioning post 24 is disposed toward the second opening 202 , and the axis of the second positioning hole 401 is parallel to the axis of the wire hole 31 .

[0041] Two branching rods 41 are formed on one side of the blocking cover 40 close to the motor cavity 1 a . The two branching rods 41 are respectively located between two adjacent phases of the three-phase wiring harness of the motor.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor anti-condensation structure, characterized in that: It includes a motor housing, a junction box, a blocking piece and a blocking cover, the junction box is located on one side of the motor housing, a motor cavity for accommodating a motor assembly is formed inside the motor housing, a wiring cavity is formed inside the junction box, the motor cavity and the wiring cavity are connected, the wiring cavity is connected to the wiring terminal, the motor assembly and the wiring terminal are connected by a transition line, the blocking piece is installed at the connection between the motor cavity and the wiring cavity, and a wire hole for the transition line to pass through is formed on the blocking piece; the blocking cover is arranged in the wiring cavity and covers the side of the blocking piece away from the motor cavity.

2. The motor anti-condensation structure according to claim 1, characterized in that: The junction box includes a junction box body, a junction box cover and a junction box side cover. The junction box body is integrally formed with the motor housing. A first opening is formed on one side of the junction box body. The junction box side cover is installed at the first opening. Insulation cotton is provided on the inner wall of the junction box side cover.

3. The motor anti-condensation structure according to claim 2, characterized in that: At least two first positioning columns are provided inside the junction box, and the ends of the first positioning columns are provided with detachable first fastening bolts. The blocking member forms a first positioning hole corresponding to the positioning columns, and the first fastening bolts fix the blocking member inside the junction box.

4. The motor anti-condensation structure according to claim 3, characterized in that: The first positioning post is disposed toward the first opening, and the axis of the first positioning hole and the axis of the wire hole are perpendicular to each other.

5. The motor anti-condensation structure according to claim 2, characterized in that: A second opening is formed at one end of the junction box body away from the motor housing, and a junction box cover is installed at the second opening. The inner wall of the junction box cover is provided with heat insulation cotton.

6. The motor anti-condensation structure according to claim 5, characterized in that: At least two second positioning columns are provided inside the junction box, the ends of the second positioning columns are detachably connected to second fastening bolts, the blocking cover forms second positioning holes corresponding to the second positioning columns, and the second fastening bolts fix the blocking cover inside the junction box.

7. The motor anti-condensation structure according to claim 6, characterized in that: The second positioning post is disposed toward the second opening, and the axis of the second positioning hole is parallel to the axis of the wire hole.

8. The motor anti-condensation structure according to claim 1, characterized in that: Two branching rods are formed on one side of the blocking cover close to the motor cavity, and the two branching rods are respectively located between two adjacent phases of the three-phase wiring harness of the motor.

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