Terminal access structure, actuator and electronic water valve applying same

Abstract

The utility model discloses a terminal access structure, an actuator and an electronic water valve using the same, at least one part of a connector terminal is embedded in an actuator shell in an integral injection molding mode, so that an external connection end of the connector terminal penetrates out of a plug-in side of an integral connector shell part; the inner connecting end of the connector terminal penetrates out of the actuator side of the integrated connector shell part; a glue injection groove is formed in the actuator side of the integrated connector shell part, and a glue injection layer is formed after glue is injected into the glue injection groove and cured; and at least one part of the internal connection end of the connector terminal is embedded in the glue injection layer. The utility model mainly solves the problem of how to provide a terminal access structure with reliable waterproof sealing performance for an actuator of an electronic water valve. A reliable waterproof sealing structure is provided for the actuator, the operation stability of the actuator and the electronic water valve is improved, the service life of the actuator and the electronic water valve is prolonged, and the waterproof sealing structure has the advantages of being simple and reasonable in structure, easy to produce and manufacture and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic water valve and its spare part technical field, concretely is a terminal access structure, actuator and the electronic water valve of application thereof. BACKGROUND

[0002] Electronic water valve (for example, stop valve, three -way valve, four -way valve and multi -way valve) can change one or several liquid medium flow passage open / shut, intercommunication relationship and liquid medium flow direction, is one of the essential spare parts in all kinds of heat management system, energy application system and heating and ventilation system liquid medium flow passage, the Chinese practical new type announcement text with the name of "a kind of automobile medium flow control electronic water valve" of CN217762197U, discloses typical electronic water valve structure.

[0003] Actuator is one of the important spare parts of electronic water valve, it is used to drive the valve core rotation of electronic water valve, to realize the basic function of electronic water valve change liquid medium flow passage open / shut, intercommunication relationship and liquid medium flow direction. Motor, motor driver / motor control module, transmission mechanism and output shaft and other spare parts are arranged in actuator, obviously, the waterproof performance of actuator will directly influence the operation performance, service life and whether can normal operation of above-mentioned spare parts.

[0004] Please refer to Figure 1 A kind of actuator of one type, connector assembly is integrated on the actuator shell 10 of the actuator, specifically, the actuator shell 10 in it is plastic material, and connector shell 30 is directly formed at the actuator shell 10 by integrally injection molding, and the connector terminal 20 of connector assembly is also integrally injection molded with actuator shell 10 by integrally injection molding.

[0005] The above-mentioned actuator, since connector terminal 20 and actuator shell 10 belong to the combination of metal material and plastic material, after actuator is used for a period of time, due to thermal expansion and contraction effect or mechanical fatigue effect, small gap between connector terminal 20 and actuator shell 10 can be generated, water vapor / liquid can penetrate into the inside of actuator shell 10 from the above-mentioned gap, to cause motor, motor driver / motor control module, transmission mechanism and output shaft and other spare parts short circuit, open circuit, rust and corrosion and other phenomena, influence the normal work of electronic water valve.

[0006] Summarized above, how to provide waterproof sealing performance reliable terminal access structure for the actuator of electronic water valve becomes one of the problems to be solved. Utility model content

[0007] The utility model discloses a purpose at providing a kind of terminal access structure, actuator and the electronic water valve of application thereof, it can provide waterproof sealing performance reliable terminal access structure for the actuator of electronic water valve.

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of terminal access structure, application in the actuator of electronic water valve;The actuator at least includes actuator shell and connector terminal;The actuator shell is integrally formed with integrated connector shell portion;The integrated connector shell portion includes: the plug-in side formed on the outer side of the actuator shell, and, the actuator side formed on the inner side of the actuator shell;The connector terminal includes outer end and inner end;At least a part of the connector terminal is embedded in the actuator shell in the way of integrally injection molding, so that the outer end of the connector terminal is worn to the plug-in side of the integrated connector shell portion, and the inner end of the connector terminal is worn from the actuator side of the integrated connector shell portion;The actuator side of the integrated connector shell portion is formed with glue injection groove, after glue injection groove is injected and solidified, glue injection layer is formed;At least a part of the inner end of the connector terminal is embedded in the glue injection layer.

[0009] In the above technical solution, the depth of the glue injection groove of the integrated connector shell portion is 0.5mm-6mm.

[0010] In the above technical solution, the glue injection layer is specifically formed by waterproof ultraviolet light curing glue after solidification by ultraviolet light irradiation.

[0011] In the above technical solution, the plug-in side of the integrated connector shell portion is formed with first retaining rib around the wearing position of the outer end of the connector terminal.

[0012] In the above technical solution, the actuator side of the integrated connector shell portion is formed with second retaining rib around the wearing position of the inner end of the connector terminal.

[0013] In the above technical solution, the inner end of the connector terminal is configured with expansion hole.

[0014] A kind of actuator, including the terminal access structure described above.

[0015] A kind of electronic water valve, including the actuator described above.

[0016] Compared with the prior art, the end terminal access structure, the actuator and the electronic water valve using the same have the following beneficial effects: the actuator side of the integrated connector housing part is formed with a glue injection groove, glue is injected into the glue injection groove and solidified to form a glue injection layer, at least a part of the inner connection end of the connector terminal is embedded in the glue injection layer, in this way, a reliable waterproof sealing structure is provided for the connection part of the actuator housing and the connector terminal, thereby improving the operation stability and service life of the actuator and the electronic water valve, effectively avoiding the faults such as short circuit, open circuit, rust and corrosion of the actuator, and having the characteristics of simple and reasonable structure, easy production and manufacture and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an end terminal access structure of an actuator in the prior art.

[0018] Figure 2 It is a structure view of the end terminal access structure of the utility model.

[0019] Figure 3 It is a sectional view of the end terminal access structure of the utility model.

[0020] Figure 4 It is Figure 3 A local enlarged view in the 1.

[0021] The reference signs are: 10, actuator housing; 20, connector terminal; 30, connector housing; 1, actuator housing; 11, integrated connector housing part; 111, plug-in side; 112, actuator side; 113, glue injection groove; 114, first retaining rib; 115, second retaining rib; 2, glue injection layer; 3, connector terminal; 31, external connection end; 32, inner connection end; 321, expansion hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The embodiment provides an end terminal access structure applied to an actuator of an electronic water valve, which is used for introducing a power supply for the actuator of the electronic water valve, and optionally introducing a control signal for the actuator of the electronic water valve, and optionally leading out a feedback signal for the actuator of the electronic water valve.

[0024] The electronic water valve is particularly applied to liquid medium flow channels of various thermal management systems, energy application systems and heating and ventilation systems, and is used for changing opening / closing, communication relationship and liquid medium flow direction of one or several liquid medium flow channels.

[0025] The actuator is particularly used for driving the valve core of the electronic water valve to rotate, so as to realize the basic function of the electronic water valve in changing opening / closing, communication relationship and liquid medium flow direction of the liquid medium flow channel.

[0026] Please refer to Figures 1-4 The actuator at least includes an actuator shell 1 and a connector terminal 3.

[0027] The actuator shell 1 is an integrally injection-molded engineering plastic shell, and the connector terminal 3 is an integrally molded metal terminal, such as a copper alloy or an aluminum alloy, which has good electrical conductivity and / or signal transmission performance.

[0028] The actuator shell 1 is integrally molded with an integral connector shell portion 11, that is, the integral connector shell portion 11 is one of the structural features of the integrally injection-molded actuator shell 1.

[0029] The integral connector shell portion 11 includes a plug-in side 111 formed on the outer side of the actuator shell 1, and an actuator side 112 formed on the inner side of the actuator shell 1; the plug-in side 111 is a male end or a female end for plug-in cooperation with a female end or a male end of an external connector, and the actuator side 112 is a protruding portion on the inner side of the actuator shell 1.

[0030] The connector terminal 3 includes an external terminal 31 and an internal terminal 32, and in this embodiment, the connector terminal 3 is substantially in the shape of "L", with the horizontal end being the external terminal 31 and the vertical end being the internal terminal 32.

[0031] At least a part of the connector terminal 3 is embedded in the actuator shell 1 in an integrally injection-molded manner, so that the external terminal 31 of the connector terminal 3 penetrates out of the plug-in side 111 of the integral connector shell portion 11, and the internal terminal 32 of the connector terminal 3 penetrates out of the actuator side 112 of the integral connector shell portion 11; specifically, the connector terminal 3 is placed in a molding mold of the actuator shell 1, plastic material is injected into the molding mold, and after the plastic material solidifies, the combination of the actuator shell 1 and the connector terminal 3 can be obtained by demolding.

[0032] In order to improve the waterproof sealing performance of the actuator shell 1 and the connector terminal 3 at the joint, the actuator side 112 of the integrated connector shell part 11 is formed with a glue injection groove 113, and after glue is injected into the glue injection groove 113 and solidified, a glue injection layer 2 is formed; at least a part of the inner connecting end 32 of the connector terminal 3 is embedded in the glue injection layer 2.

[0033] Specifically, the depth of the glue injection groove 113 of the integrated connector shell part 11 is 0.5mm-6mm, in this way, the thickness of the glue injection layer 2 is controlled; in the embodiment, the depth of the glue injection groove 113 is 1.5mm, which can obtain sufficient waterproof sealing performance, and does not excessively increase the thickness and weight of the actuator shell 1.

[0034] Specifically, the glue injection layer 2 is formed by solidifying the waterproof ultraviolet curing glue by ultraviolet irradiation, that is, the waterproof ultraviolet curing glue is dropped at the glue injection groove 113 of the integrated connector shell part 11, and the waterproof ultraviolet curing glue is irradiated by ultraviolet light to obtain the glue injection layer 2 after solidification.

[0035] Further, the plug-in side 111 of the integrated connector shell part 11 is formed with a first retaining rib 114 around the passing position of the outer connecting end 31 of the connector terminal 3; in the embodiment, the first retaining rib 114 is conical; the first retaining rib 114 can effectively reinforce the outer connecting end 31 of the connector terminal 3.

[0036] Further, the actuator side 112 of the integrated connector shell part 11 is formed with a second retaining rib 115 around the passing position of the inner connecting end 32 of the connector terminal 3; in the embodiment, the second retaining rib 115 is conical; the second retaining rib 115 can effectively reinforce the inner connecting end 32 of the connector terminal 3.

[0037] Further, the inner connecting end 32 of the connector terminal 3 is provided with an expansion hole 321, that is, the inner connecting end 32 of the connector terminal 3 is in the shape of a "fish eye", so that the inner connecting end 32 of the connector terminal 3 is suitable for being crimped and fixed on the circuit board, so as to improve the mechanical connection reliability between the connector terminal 3 and the circuit board.

[0038] The embodiment also provides an actuator comprising the terminal access structure.

[0039] The embodiment also provides an electronic water valve comprising the actuator.

[0040] The terminal access structure, the actuator and the electronic water valve using the same of the embodiment, the actuator side 112 of the integrated connector housing part 11 is formed with a glue injection groove 113, at least a part of the inner end 32 of the connector terminal 3 is embedded in the glue injection layer 2 after glue injection groove 113 is injected with glue and solidification, in this way, a reliable waterproof sealing structure is provided for the joint of the actuator housing 1 and the connector terminal 3, thereby improving the operation stability and service life of the actuator and the electronic water valve, effectively avoiding the faults such as short circuit, open circuit, rust and corrosion of the actuator, and having the characteristics of simple and reasonable structure, easy production and low cost.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A terminal access structure applied on an actuator of an electronic water valve; characterized in that, The actuator comprises at least an actuator housing and a connector terminal; The actuator housing is integrally formed with an integral connector housing portion; The integral connector housing portion comprises a plug-in side formed on the outside of the actuator housing, and an actuator side formed on the inside of the actuator housing; The connector terminal comprises an external terminal and an internal terminal; At least a part of the connector terminal is integrally injection molded into the actuator housing, so that the external terminal of the connector terminal is exposed to the plug-in side of the integral connector housing portion, and the internal terminal of the connector terminal is exposed to the actuator side of the integral connector housing portion; The actuator side of the integral connector housing portion is formed with a glue injection groove, and after glue injection and solidification, a glue injection layer is formed; At least a part of the internal terminal of the connector terminal is embedded in the glue injection layer.

2. The terminal access structure of claim 1, wherein, The depth of the glue injection groove of the integral connector housing portion is 0.5-6mm.

3. The terminal access structure of claim 1 or 2, wherein, The glue injection layer is formed by waterproof ultraviolet curing glue after ultraviolet irradiation and solidification.

4. The terminal access structure of claim 1, wherein, The plug-in side of the integral connector housing portion is formed with a first retaining rib around the exposed position of the external terminal of the connector terminal.

5. The terminal access structure of claim 1 or 4, wherein The actuator side of the integral connector housing portion is formed with a second retaining rib around the exposed position of the internal terminal of the connector terminal.

6. The terminal access structure of claim 1, wherein, The internal terminal of the connector terminal is provided with an expansion hole.

7. An actuator, characterized by The terminal access structure according to any one of claims 1-6.

8. An electronic water valve characterized by, The actuator according to claim 7.

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