Heater with two ends formed by glue pouring

Abstract

According to the heater with the two ends formed through glue pouring, a PTC heating core body is positioned and installed in a base which is in matched butt joint with a controller, and a first groove body and a second groove body which are used for glue pouring are reserved between the two ends of the PTC heating core body and the two end walls of the base, so that subsequent glue pouring work is facilitated; the first groove body extends towards one side of the controller and is in butt joint with the slot of the controller shell, during installation, the electrode strip can be directly installed in the first groove body, one end of the electrode strip is electrically connected with the PTC heating core body, the other end of the electrode strip is inserted into the slot to be electrically connected with the controller, and then glue pouring sealing is executed in the first groove body and the second groove body at a time. Compared with a traditional glue pouring-connection-secondary glue pouring process, the production process of the heater is greatly simplified, the production period is shortened, the production cost is reduced, the sealing effect of one-time glue pouring is good, the protection grade is high, and therefore the service life of the heater is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of PTC heaters and relates to a heater, in particular to a heater with glue-filled molding at both ends. Background Art

[0002] With the rapid development of new energy vehicles, PTC electric heaters serve as the only direct heat source for electric vehicles, which is extremely important. Winter in-car heating, defrosting and defogging safety requirements, and the short life of power batteries at low temperatures all require PTC electric heaters to provide corresponding heat. PTC electric heaters and controllers are usually waterproofed by glue filling. However, the existing glue filling method of PTC electric heaters is to first fill glue and seal the two ends of the PTC heating tube, then connect the PTC heating tube to the controller compartment through a wire, and finally fill glue and seal the connecting hole for the second time. The process is complicated. Since the glue takes a long time to dry and solidify, and it needs to be filled with glue multiple times on the glue filling tooling and glue filling machine, the production cycle is long, the production cost is high, the sealing effect of multi-level glue filling is not ideal, and the protection level is low. When used in many southern regions with heavy rain or foreign regions, the life is short. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a heater with glue-filled molding at both ends, which realizes one-time glue-filled sealing of both ends of the heater, greatly simplifies the process flow of heater production, shortens the production cycle, and reduces production costs.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A heater with glue-filled ends comprises: a base, a PTC heating core, an electrode strip and a controller. The base is adaptably connected to the outer shell of the controller. A slot is provided at one end where the outer shell of the controller is connected to the base. An installation slot is provided in the middle of the base. The PTC heating core is adaptably installed in the installation slot. A first slot body and a second slot body are respectively provided between the two ends of the PTC heating core and the two end walls of the base. The first slot body extends to one side of the controller and docks with the slot of the outer shell of the controller. The electrode strip is installed in the first slot body. One end of the electrode strip is welded to the PTC heating core and electrically connected to the PTC heating core. The other end of the electrode strip is inserted into the slot and electrically connected to the controller. The first slot body, the second slot body and the slot are all sealed with glue.

[0006] Furthermore, the first slot body and the second slot body are connected to each other through a side slot, and the side slot is arranged between the side surface of the PTC heating core and the side wall of the base.

[0007] Furthermore, a connecting pipe is provided at the bottom of the side trough, one end of the connecting pipe is connected to the first trough body, and the other end of the connecting pipe is connected to the second trough body.

[0008] Furthermore, the PTC heating core includes a plurality of groups of heating tubes, the heating tubes are made of aluminum tubes, at least one heating resistor is arranged in the heating tubes, and an electrical connector connected to the heating resistor is encapsulated at one end of the heating tubes.

[0009] Furthermore, the PTC heating core also includes multiple groups of heat dissipation fins, which are connected to both sides of the heating tubes so that the multiple groups of heating tubes are arranged between the multiple groups of heat dissipation fins at intervals, and the heat dissipation fins adopt a heat dissipation corrugated structure.

[0010] Furthermore, the electrode strip includes: an integrally formed first electrode sheet and a second electrode sheet, the first electrode sheet is sequentially connected to the electrical connectors at the ends of multiple groups of heating tubes, and the second electrode sheet extends toward the controller and is inserted into the slot to be electrically connected to the controller.

[0011] Furthermore, one end of the second electrode sheet passes through the slot and is crimped to an OT connection terminal in the controller housing, and the OT connection terminal is assembled on the high-voltage connector of the controller.

[0012] Furthermore, the first slot body includes: a side slot and an extension slot, the side slot is arranged parallel to the end face of the PTC heating core, the first electrode sheet is adapted to be arranged in the side slot, one end of the extension slot is vertically connected to the side slot, and the other end of the extension slot is connected to the slot of the controller housing, and the second electrode sheet is adapted to be arranged in the extension slot.

[0013] Furthermore, one end of the base connected to the controller is provided with two docking grooves, and the two docking grooves are respectively arranged on both sides of the extension groove. Two docking blocks are provided on the controller, and the two docking blocks are respectively installed in the two docking grooves by bolts to connect and fix the base to the controller.

[0014] Furthermore, the glue filling method of the heater comprises the following steps:

[0015] The PTC heating core body welded with the motor strip is installed in the installation groove of the base, so that the electrode strip is installed in the first groove body;

[0016] The controller and the base are connected and fixed together so that the electrode strips are inserted into the housing of the controller and electrically connected to the controller;

[0017] Glue is poured into the first slot body once, so that the glue is poured from the first slot body into the second slot body and the slot to achieve sealing.

[0018] The beneficial effects of the present invention: The heater with glue filling at both ends provided by the present application is formed by positioning and installing the PTC heating core in a base adapted to be connected with the controller, and reserving a first slot body and a second slot body for glue filling between the two ends of the PTC heating core and the two end walls of the base, so as to facilitate the subsequent glue filling operation; by extending the first slot body to one side of the controller and docking it with the slot of the controller housing, during installation, the electrode strip can be directly installed in the first slot body, and one end of the electrode strip is electrically connected to the PTC heating core, and the other end is inserted into the slot and electrically connected to the controller, and then glue filling and sealing can be performed in the first slot body and the second slot body at one time. Compared with the traditional glue filling-connection-second glue filling process, the process flow of heater production is greatly simplified, the production cycle is shortened, and the production cost is reduced; the one-time glue filling has good sealing effect and high protection level, thereby prolonging the service life of the heater; by connecting the first slot body and the second slot body to each other through the side slot, glue filling at both ends of the heater is achieved at one time, which further simplifies the process flow of heater production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the base of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the PTC heating core of the present invention.

[0022] Figure 4 Schematic diagram of the connection of the controller of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-4As shown, the present invention provides a heater with glue filling at both ends, including: a base 1, a PTC heating core 2, an electrode strip 3 and a controller 4, the base 1 is adaptively connected to the shell of the controller 4, a slot 41 is provided at one end where the shell of the controller 4 is connected to the base 1, a mounting slot 11 is provided in the middle of the base 1, the PTC heating core 2 is adaptively installed in the mounting slot 11, a first slot body 12 and a second slot body 13 for glue filling are respectively provided between the two ends of the PTC heating core 2 and the two end walls of the base 1, so as to facilitate the operation of subsequent glue filling, the first slot body 12 extends to one side of the controller 4 and docks with the slot 41 of the shell of the controller 4, the electrode strip 3 is installed in the first slot body 12, and one end of the electrode strip 3 is welded to the PTC heating core 2. The hot core 2 is electrically connected to the PTC heating core 2, the other end of the electrode strip 3 is inserted into the slot 41 and electrically connected to the controller 4, the first slot 12, the second slot 13 and the slot 41 are all sealed with glue. During the specific installation, the electrode strip can be directly installed in the first slot first, and then one end of the electrode strip is electrically connected to the PTC heating core, and the other end is inserted into the slot and electrically connected to the controller, and finally the first slot and the second slot are sealed with glue at one time. Compared with the traditional glue filling-connection-second glue filling process, the process flow of heater production is greatly simplified, the production cycle is shortened, the production cost is reduced, and the one-time glue filling has a good sealing effect and a high protection level, thereby prolonging the service life of the heater.

[0025] The first tank body 12 and the second tank body 13 are connected to each other through the side groove 14, and the side groove 14 is arranged between the side of the PTC heating core 2 and the side wall of the base 1, so that the glue is simultaneously poured on both ends of the heater at one time, further simplifying the process flow of heater production. Specifically, a connecting pipe 15 is arranged at the bottom of the side groove 14, one end of the connecting pipe 15 is connected to the first tank body 12, and the other end of the connecting pipe 15 is connected to the second tank body 13.

[0026] The PTC heating core 2 includes multiple groups of heating tubes 21 and multiple groups of heat dissipation fins 22. The heating tubes 21 are made of aluminum tubes. At least one heating resistor is arranged inside the heating tubes 21. One end of the heating tubes 21 is encapsulated with an electrical connector 23 connected to the heating resistor. The heat dissipation fins 22 are connected to both sides of the heating tubes 21 so that multiple groups of heating tubes 21 are arranged between multiple groups of heat dissipation fins 22 at intervals, which greatly enhances the heat dissipation effect, enables the heater to achieve greater power, and improves the heating effect. The heat dissipation fins 22 adopt a heat dissipation corrugated structure, which effectively increases the heat dissipation area, enables sufficient heat transfer between the heating tubes 1 and the heat dissipation fins 2, and further improves the heating effect.

[0027] The electrode strip 3 includes: an integrally formed first electrode sheet 31 and a second electrode sheet 32, the first electrode sheet 31 is sequentially connected to the electrical connectors 23 at the ends of the plurality of heating tubes 21, and the second electrode sheet 32 ​​extends toward the controller 4 and is inserted into the slot 41 to be electrically connected to the controller 4. One end of the second electrode sheet 32 ​​passes through the slot 41 and is crimped to the OT connection terminal in the housing of the controller 4, and the OT connection terminal is assembled on the high-voltage connector of the controller 4.

[0028] Correspondingly, the first slot body 12 includes: a side slot 121 and an extension slot 122. The side slot 121 is arranged parallel to the end face of the PTC heating core 2. The first electrode sheet 31 is adapted to be arranged in the side slot 121. One end of the extension slot 122 is vertically connected to the side slot 121. The other end of the extension slot 122 is connected to the slot 41 of the controller 4 housing. The second electrode sheet 32 ​​is adapted to be arranged in the extension slot 122.

[0029] Two docking grooves 16 are provided at one end where the base 1 is connected to the controller 4. The two docking grooves 16 are respectively arranged on both sides of the extension groove 122. Two docking blocks 42 are provided on the controller 4. The two docking blocks 42 are respectively installed in the two docking grooves 16 by bolts to connect and fix the base 1 to the controller 4.

[0030] The heater with glue-filled ends provided in the present application has a glue-filling method comprising the following steps: first, the PTC heating core 2 welded with the motor bar 3 is adapted and installed in the installation groove 11 of the base 1, so that the electrode bar 3 is adapted in the first groove body 12; then, the controller 4 is adapted and connected and fixed to the base 1, so that the electrode bar 3 is inserted into the outer shell of the controller 4 and electrically connected to the controller 4; finally, only one glue filling is performed in the first groove body 12, so that the glue is poured from the first groove body 12 into the second groove body 13 and the slot 41 respectively to achieve sealing.

[0031] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A heater with glue-filled molding at both ends, characterized in that: include: A base (1), a PTC heating core (2), an electrode strip (3) and a controller (4); the base (1) is adaptably connected to the housing of the controller (4); a slot (41) is provided at one end of the housing of the controller (4) connected to the base (1); a mounting slot (11) is provided in the middle of the base (1); the PTC heating core (2) is adaptably installed in the mounting slot (11); a first slot (12) and a second slot (13) are respectively provided between the two ends of the PTC heating core (2) and the two end walls of the base (1); A slot body (13), the first slot body (12) extends toward one side of the controller (4) and docks with a slot (41) of a housing of the controller (4), the electrode strip (3) is installed in the first slot body (12), one end of the electrode strip (3) is welded to the PTC heating core (2) and electrically connected to the PTC heating core (2), the other end of the electrode strip (3) is inserted into the slot (41) and electrically connected to the controller (4), and the first slot body (12), the second slot body (13) and the slot (41) are all sealed with glue.

2. The heater according to claim 1, characterized in that The first slot body (12) and the second slot body (13) are connected to each other via a side slot (14), and the side slot (14) is arranged between the side surface of the PTC heating core (2) and the side wall of the base (1).

3. The heater according to claim 2, characterized in that A connecting pipe (15) is provided at the bottom of the side trough (14), one end of the connecting pipe (15) is connected to the first trough body (12), and the other end of the connecting pipe (15) is connected to the second trough body (13).

4. The heater according to claim 1, characterized in that The PTC heating core (2) comprises a plurality of groups of heating tubes (21), wherein the heating tubes (21) are made of aluminum tubes, at least one heating resistor is arranged inside the heating tubes (21), and an electrical connector (23) connected to the heating resistor is encapsulated at one end of the heating tubes (21).

5. The heater according to claim 4, characterized in that The PTC heating core (2) further comprises a plurality of groups of heat dissipation fins (22), the heat dissipation fins (22) being connected to both sides of the heating tube (21), so that the plurality of groups of heating tubes (21) are arranged at intervals between the plurality of groups of heat dissipation fins (22), and the heat dissipation fins (22) adopt a heat dissipation corrugated structure.

6. The heater according to claim 5, characterized in that The electrode strip (3) comprises: an integrally formed first electrode sheet (31) and a second electrode sheet (32); the first electrode sheet (31) is sequentially connected to the electrical connectors (23) at the ends of the plurality of groups of heating tubes (21); and the second electrode sheet (32) extends toward the controller (4) and is inserted into the slot (41) to be electrically connected to the controller (4).

7. The heater according to claim 6, characterized in that One end of the second electrode sheet (32) passes through the slot (41) and is crimped to an OT connection terminal in the housing of the controller (4); the OT connection terminal is assembled on the high-voltage connector of the controller (4).

8. The heater according to claim 6, characterized in that The first slot body (12) comprises: a side slot (121) and an extension slot (122); the side slot (121) is arranged parallel to the end surface of the PTC heating core (2); the first electrode sheet (31) is adapted to be arranged in the side slot (121); one end of the extension slot (122) is vertically connected to the side slot (121); the other end of the extension slot (122) is connected to the slot (41) of the controller (4) housing; and the second electrode sheet (32) is adapted to be arranged in the extension slot (122).

9. The heater according to claim 8, characterized in that One end of the base (1) connected to the controller (4) is provided with two docking grooves (16), the two docking grooves (16) are respectively arranged on both sides of the extension groove (122), and the controller (4) is provided with two docking blocks (42), the two docking blocks (42) are respectively installed in the two docking grooves (16) by bolts, so as to connect and fix the base (1) and the controller (4).

10. The method for filling a heater with glue according to any one of claims 1 to 9, characterized in that: The following steps are involved: The PTC heating core (2) welded with the motor strip (3) is fitted into the mounting groove (11) of the base (1), so that the electrode strip (3) is fitted into the first groove body (12); The controller (4) and the base (1) are adapted to be connected and fixed, and the electrode strip (3) is inserted into the housing of the controller (4) to be electrically connected to the controller (4); Glue is poured into the first groove body (12) once, so that the glue is poured from the first groove body (12) into the second groove body (13) and the slot (41) respectively to achieve sealing.

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